In this underwater game, children choose the correct subtraction expression for a given fact family.

What happens when you take 10 away? Practice finding 10 less in this three-digit subtraction game.

Kids subtract apples in two-step equations to find a target number.

Kids must quickly add or subtract two-digit numbers to save the day.

Kids race down the mountain by correctly subtracting multiples of 10 from two-digit numbers.