Practice writing equations: There are 4 pages to complete. For each page, use the tool to add the marshmallows to both cocoa mugs. Use all the marshmallows in the bowl, make whatever groups you want! Then count how many in each cup and add the numbers to the boxes in the number sentence. Use the or the tool for your numbers, And be sure to add them all together for the sum in the last box. Tap the to read each number sentence to me.