Bridges Unit 1 Review

___ = 4 + 8

• 10

• 12

• 4

• 6

Which problem is a Doubles Plus One fact?

• 8 + 9

• 6 + 8

• 5 + 6

• 10 + 1

Cassie is 44 inches tall. Her brother Charlie is 35 inches tall. How much taller is Cassidy? Solve on your whiteboards.

Patrick measured a book that was 27 cm long. Katy measured another book that was 40 cm long. If they lined up both books, how long are the books together?

Is this an addition (+) or subtraction (-) problem?

• Addition (+)

• Subtraction (-)

Choose an equation that represents this problem.

Cassie is 44 inches tall. Her brother Charlie is 35 inches tall. How much taller is Cassidy?

• 35 + 44 = a

• 44 - a = 35

• a + 44 = 35

• 44 - 35 = a

___ + 8 = 20

• 12

• 28

• 10

• 2

Colin measured a poster. The first side of the poster was 88 units long. The second side was 25 units long. How much longer was the first side than the second side of the poster?

Is this an addition (+) or subtraction (-) problem?

• Addition (+)

• Subtraction (-)

Fill in the blanks.

___ , 146, ___, ____, 176

• 145, 147, 148

• 136, 150, 166

• 130, 156, 166

• 136, 156, 166

Carly has 29 coins. Sarah has 17 coins. How many more coins does Carly have? Use your whiteboards to show your work.

Which equation represents the beads on the left side of the number rack?

• 9 - 6

• 4 + 1

• 4 - 1

• 6 + 9