Adding and subtracting multiples of 10

45 + 40 =

• 65

• 75

• 85

• 95

Tags

CCSS.2.NBT.B.5

73 - 13

• 60

• 50

• 63

• 33

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

128 - _______ = 108

• 38

• 20

• 28

• 30

225 - 10 =

• 205

• 220

• 100

• 215

______ - 50 = 350

• 280

• 400

• 360

• 270

Lisa is running a 400 metre race. She has to run another 30 metres to run before reaching the finishing line.

How far has she run already?

• 430

• 330

• 370

• 470

There are 550 birds in a field. Another 20 birds fly in.

How many birds are there now altogether?

• 522

• 560

• 570

• 599

There are 260 eggs in a big basket. 35 eggs fell and broke.

How many eggs are left in the basket?

• 225

• 235

• 245

• 220