Challenge problems with multi-step word problems and properties
Sarah has 7 red balloons and 5 blue balloons. 3 balloons pop. How many balloons does she have left?
If 8 + 6 = 14, then 6 + 8 = ___
Addition works the same both ways.
Emma has some stickers. She gets 7 more and now has 15. How many did she start with?
If 12 - 5 = 7, then 12 - 7 = 5
Tom had 18 marbles. He gave 9 to Jake and 4 to Sarah. How many does Tom have now? ___
Subtract twice: first 9, then 4.
Which shows the identity property of addition?
A zoo has 8 monkeys and 7 zebras. A new monkey arrives. How many animals are there now? ___
Add all three: 8 + 7 + 1.
In the equation 9 + ___ = 15, the missing number is 6.
Jake solved 5 + 8 by thinking '5 + 5 = 10, then 10 + 3 = 13'. What did Jake do?
There are 20 students. 12 bring lunch from home. The rest buy lunch. How many buy lunch? ___
Subtract to find the rest.
Which equation is in the same fact family as 7 + 6 = 13?
(4 + 3) + 2 equals 4 + (3 + 2). This is called the associative property.
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