diff --git a/js/common/model/CountingObject.ts b/js/common/model/CountingObject.ts
index 5e709a9..923f915 100644
--- a/js/common/model/CountingObject.ts
+++ b/js/common/model/CountingObject.ts
@@ -86,6 +86,7 @@ export default class CountingObject extends PhetioObject {
 
     // This Property should not reset. It is managed by the addend array when added or removed.O
     this.addendTypeProperty = new EnumerationProperty( AddendType.INACTIVE, {
+      hasListenerOrderDependencies: true,
       tandem: this.tandem.createTandem( 'addendTypeProperty' ),
       phetioReadOnly: true,
       phetioFeatured: false
diff --git a/js/common/model/DecompositionModel.ts b/js/common/model/DecompositionModel.ts
index 041efb1..430b205 100644
--- a/js/common/model/DecompositionModel.ts
+++ b/js/common/model/DecompositionModel.ts
@@ -56,6 +56,7 @@ export default class DecompositionModel extends NumberPairsModel {
     const initialSceneModel = sceneModels.find( sceneModel => sceneModel.total === options.initialTotalValue );
     assert && assert( initialSceneModel, `initialSceneModel not found for total: ${options.initialTotalValue}` );
     const selectedSceneModelProperty = new Property( initialSceneModel!, {
+      hasListenerOrderDependencies: true,
       phetioValueType: NumberPairsScene.NumberPairsSceneIO,
       tandem: options.tandem.createTandem( 'selectedSceneModelProperty' ),
       phetioFeatured: true
@@ -67,6 +68,7 @@ export default class DecompositionModel extends NumberPairsModel {
     const rightAddendCountingObjectsProperty = new DerivedProperty( [ selectedSceneModelProperty ],
       sceneModel => sceneModel.rightAddendObjects );
     const leftAddendProperty = new DynamicProperty<number, number, NumberPairsScene>( selectedSceneModelProperty, {
+      hasListenerOrderDependencies: true,
       derive: 'leftAddendProperty',
       bidirectional: true // This Property needs to be bidirectional because it is set by the slider in the NumberLineNode.
     } );
diff --git a/js/common/model/NumberPairsModel.ts b/js/common/model/NumberPairsModel.ts
index 8dcf629..8992f91 100644
--- a/js/common/model/NumberPairsModel.ts
+++ b/js/common/model/NumberPairsModel.ts
@@ -152,6 +152,7 @@ export default class NumberPairsModel implements TModel {
     // The range will update after all addends have stabilized their values during construction.
     this.numberLineSliderEnabledRangeProperty = new Property(
       new Range( NumberPairsConstants.TWENTY_NUMBER_LINE_RANGE.min, numberOfCountingObjects ), {
+        hasListenerOrderDependencies: true,
         phetioValueType: Range.RangeIO,
         tandem: options.tandem.createTandem( 'numberLineSliderEnabledRangeProperty' )
       } );
@@ -172,9 +173,11 @@ export default class NumberPairsModel implements TModel {
     } );
 
     this.leftAddendCountingObjectsLengthProperty = new DynamicProperty( this.leftAddendCountingObjectsProperty, {
+      hasListenerOrderDependencies: true,
       derive: 'lengthProperty'
     } );
     this.rightAddendCountingObjectsLengthProperty = new DynamicProperty( this.rightAddendCountingObjectsProperty, {
+      hasListenerOrderDependencies: true,
       derive: 'lengthProperty'
     } );
   }
@@ -397,7 +400,7 @@ export default class NumberPairsModel implements TModel {
       new Vector2( position.x + xTranslation, position.y ) );
     const newLeftLocationPositions = rightLocationPositions.map( position =>
       new Vector2( position.x - xTranslation, position.y ) );
-    this.setLocationPositions( newLeftLocationPositions, newRightLocationPositions );
+    this.setLocationPositions( leftAddendObjects, rightAddendObjects, newLeftLocationPositions, newRightLocationPositions );
 
     // Bead positions should be a translation across the separator.
     const updatedSeparatorPosition = NumberPairsModel.calculateBeadSeparatorXPosition( this.leftAddendProperty.value );
@@ -405,7 +408,7 @@ export default class NumberPairsModel implements TModel {
     const leftXTranslation = updatedSeparatorPosition + NumberPairsConstants.BEAD_DISTANCE_FROM_SEPARATOR - _.min( leftBeadXPositions )!;
     const newLeftBeadXPositions = rightBeadXPositions.map( x => x - rightXTranslation );
     const newRightBeadXPositions = leftBeadXPositions.map( x => x + leftXTranslation );
-    this.setBeadXPositions( newLeftBeadXPositions, newRightBeadXPositions );
+    this.setBeadXPositions( leftAddendObjects, rightAddendObjects, newLeftBeadXPositions, newRightBeadXPositions );
 
     assert && assert( this.leftAddendCountingObjectsProperty.value.length === this.leftAddendProperty.value, 'Addend array length and value should match' );
     assert && assert( this.rightAddendCountingObjectsProperty.value.length === this.rightAddendProperty.value, 'Addend array length and value should match' );
@@ -415,10 +418,10 @@ export default class NumberPairsModel implements TModel {
    * Set the location positions of the counting objects based on the provided left and right location positions.
    * @param leftLocationPositions
    * @param rightLocationPositions
+   * @param leftAddendObjects - prevent incorrect intermediary values by using the same counting objects as the call site.
+   * @param rightAddendObjects
    */
-  public setLocationPositions( leftLocationPositions: Vector2[], rightLocationPositions: Vector2[] ): void {
-    const leftAddendObjects = this.leftAddendCountingObjectsProperty.value;
-    const rightAddendObjects = this.rightAddendCountingObjectsProperty.value;
+  public setLocationPositions( leftAddendObjects: CountingObject[], rightAddendObjects: CountingObject[], leftLocationPositions: Vector2[], rightLocationPositions: Vector2[] ): void {
 
     assert && assert( leftAddendObjects.length === leftLocationPositions.length, 'leftAddendObjects should be the same length as the rightLocationPositions now that they have been swapped.' );
     assert && assert( rightAddendObjects.length === rightLocationPositions.length, 'rightAddendObjects should be the same length as the leftLocationPositions now that they have been swapped.' );
@@ -455,12 +458,14 @@ export default class NumberPairsModel implements TModel {
    * Set the bead x positions of the counting objects based on the provided left and right x positions.
    * @param leftXPositions
    * @param rightXPositions
+   * @param leftAddendObjects - prevent incorrect intermediary values by using the same counting objects as the call site.
+   * @param rightAddendObjects
    */
-  public setBeadXPositions( leftXPositions: number[], rightXPositions: number[] ): void {
-    this.leftAddendCountingObjectsProperty.value.forEach( ( countingObject, index ) => {
+  public setBeadXPositions( leftAddendObjects: CountingObject[], rightAddendObjects: CountingObject[], leftXPositions: number[], rightXPositions: number[] ): void {
+    leftAddendObjects.forEach( ( countingObject, index ) => {
       countingObject.beadXPositionProperty.value = leftXPositions[ index ];
     } );
-    this.rightAddendCountingObjectsProperty.value.forEach( ( countingObject, index ) => {
+    rightAddendObjects.forEach( ( countingObject, index ) => {
       countingObject.beadXPositionProperty.value = rightXPositions[ index ];
     } );
     this.beadXPositionsProperty.value = leftXPositions.concat( rightXPositions );
@@ -511,7 +516,7 @@ export default class NumberPairsModel implements TModel {
       return groupingIndex + i + beadSeparatorXPosition + distanceFromSeparator;
     } );
 
-    this.setBeadXPositions( leftXPositions, rightXPositions );
+    this.setBeadXPositions( leftAddendBeads, rightAddendBeads, leftXPositions, rightXPositions );
   }
 
   /**
diff --git a/js/common/model/NumberPairsScene.ts b/js/common/model/NumberPairsScene.ts
index 7780ed0..56c975b 100644
--- a/js/common/model/NumberPairsScene.ts
+++ b/js/common/model/NumberPairsScene.ts
@@ -53,6 +53,7 @@ export default class NumberPairsScene {
     } );
     this.leftAddendProperty = new NumberProperty( initialLeftAddendValue, {
       range: sceneRange,
+      hasListenerOrderDependencies: true,
       numberType: 'Integer',
       tandem: tandem.createTandem( 'leftAddendProperty' )
     } );
diff --git a/js/common/view/BeadsOnWireNode.ts b/js/common/view/BeadsOnWireNode.ts
index 4992776..8ea1657 100644
--- a/js/common/view/BeadsOnWireNode.ts
+++ b/js/common/view/BeadsOnWireNode.ts
@@ -278,7 +278,7 @@ export default class BeadsOnWireNode extends Node {
       rightAddendXPositions = this.shiftXPositions( rightAddendXPositions, 1, separatorXPosition + beadDistanceFromSeparator );
     }
 
-    this.model.setBeadXPositions( leftAddendXPositions, rightAddendXPositions );
+    this.model.setBeadXPositions( leftAddendBeads, rightAddendBeads, leftAddendXPositions, rightAddendXPositions );
   }
 
   /**
diff --git a/js/common/view/NumberLineSlider.ts b/js/common/view/NumberLineSlider.ts
index 3dfb306..31c888d 100644
--- a/js/common/view/NumberLineSlider.ts
+++ b/js/common/view/NumberLineSlider.ts
@@ -45,6 +45,13 @@ export default class NumberLineSlider extends HSlider {
     const numberLineRange = providedOptions.numberLineRange;
     const thumbNode = new ThumbNode( providedOptions.tandem );
 
+    leftAddendNumberProperty.link( leftAddendNumber => {
+      console.log( 'leftAddend', leftAddendNumber );
+    } );
+    enabledRangeProperty.link( enabledRange => {
+      console.log( 'enabledRange', enabledRange );
+    } );
+
     const sliderTickParent = new Node();
     const trackNode = new NumberLineSliderTrack(
       leftAddendNumberProperty,
diff --git a/js/sum/model/SumModel.ts b/js/sum/model/SumModel.ts
index 49f6d5d..2e10dcc 100644
--- a/js/sum/model/SumModel.ts
+++ b/js/sum/model/SumModel.ts
@@ -51,6 +51,7 @@ export default class SumModel extends NumberPairsModel {
     const leftAddendProperty = new NumberProperty( NumberPairsConstants.SUM_INITIAL_LEFT_ADDEND_VALUE, {
       numberType: 'Integer',
       range: SCENE_RANGE,
+      hasListenerOrderDependencies: true,
       tandem: options.tandem.createTandem( 'leftAddendProperty' )
     } );
 
@@ -58,6 +59,7 @@ export default class SumModel extends NumberPairsModel {
       NumberPairsConstants.SUM_INITIAL_LEFT_ADDEND_VALUE + NumberPairsConstants.SUM_INITIAL_RIGHT_ADDEND_VALUE, {
         tandem: options.tandem.createTandem( 'totalProperty' ),
         numberType: 'Integer',
+        hasListenerOrderDependencies: true,
         range: SCENE_RANGE
       } );
 
@@ -214,7 +216,7 @@ export default class SumModel extends NumberPairsModel {
     this.setCountingObjectsToInitialValues();
 
     const initialBeadPositions = NumberPairsModel.getInitialBeadPositions( this.leftAddendProperty.value, this.totalProperty.value );
-    this.setBeadXPositions( initialBeadPositions.leftAddendXPositions, initialBeadPositions.rightAddendXPositions );
+    this.setBeadXPositions( this.leftAddendCountingObjectsProperty.value, this.rightAddendCountingObjectsProperty.value, initialBeadPositions.leftAddendXPositions, initialBeadPositions.rightAddendXPositions );
     this.beadXPositionsProperty.value = [ ...initialBeadPositions.leftAddendXPositions, ...initialBeadPositions.rightAddendXPositions ];
   }
 }