1.NBT.4 Topic 10 Quick Check

Which equation matches the sets of cubes shown?

• 50 + 40 = 90

• 5 + 3 = 8

• 50 + 50 = 100

• 50 + 3 = 53

Ashley says she knows that 4 + 2 = 7, so she also knows that 40 + 20 = 76. Is she correct?

• Yes

• No

Gabe says that he knows that 2 + 2 = 4, so he also knows that 20 + 20 = 40. Is he correct?

• Yes

• No

Choose the correct answer choice.

29 + 10 = _____

• 33

• 19

• 39

• 47

Choose the correct answer choice.

51 = ____ + ____

• 20 + 20

• 50 + 10

• 25 + 10

• 41 + 10

Choose the correct answer choice. Use the number chart or your own strategy.

14 + 20 = _____

• 34

• 22

• 45

• 53

Choose the correct answer choice. Use the number line or the strategy of your choice.

48 + 30 = _____

• 58

• 70

• 78

• 80

Emma has 22 dresses. Her mom buys her 6 more. How many dresses does she have now?

Draw tens and ones to help you solve or use the strategy of your choice.

• 28

• 30

• 32

• 36