Unit 7 Review

Milo has 37 pencils. He buys some more. Now Milo has 54 pencils. How many pencils does Milo buy? Which equation represents the problem?

• 57-34=?

• 37 + ?=54

• 57-?=37

• 37-?=54

David has 23 more stamps than Leah. David has 42 stamps. How many stamps does Leah have?

• 42

• 23

• 19

• 65

Brad has 14 fewer dimes than Elena. Elena has 65 dimes. How many dimes does Brad have?

Which is a number story for 75-28=?

• Isabel has 75 shells. She finds 28 more shells. How many shells does Isabel have now?

• Kawan scores 75 points on Monday. He scores 28 points on Tuesday. How many more points did he score on Monday than on Tuesday?

• Talia has 28 more markers than Ramel. Ramel has 75 markers. How many markers does Talia have?

Jacob needs 86 beads to make a necklace. The colors of the beads he needs are red, yellow, and blue. He has 34 red beads and 17 yellow beads. How many blue beads does Jacob need?

• 35

• 34

• 17

Ava has 47 more crayons than Ben. Ava has 71 crayons. How many crayons does Ben have?

Willie collects cans to be recycled. The table shows the number of cans he has collected on Thursday and Saturday. How many fewer cans did Willie collect on Thursday than on Saturday?

• 16

• 17

• 18

• 19

Which missing number makes each equation true?

21 - 10 = 15 - ?

• 6

• 5

• 4

• 3

Is the the equation true or false?

45 + 19 = 47 + 17

• True

• False

Which phrase makes the sentence true?

An equation is true if the value of the right side is ____ the value of the left side.

• equal to

• not equal to

• one less than

• one more than