Add and Subtract Decimals with Visual Models

The shaded model represents the decimal-

• 0.08

• 0.8

• 0.92

• 8

9.8 - 8.2

• 1.6

• 1.5

• 1.4

• 1.35

37.477 - 22.693

• 14.784

• 14.256

• 14.635

• 14.258

3.956 - 1.44

• 2.516

• 2.556

• 2.258

• 2.485

Which of the following expressions matches the grid shown?

• 0.46 + 0.17 = 0.37

• 0.46 - 0.17 = 0.37

• 0.63 + 0.17 = 0.80

• 0.63 - 0.17 = 0.46

Which problem is represented by this model? BE CAREFUL!

• 0.27 - 0.9

• 0.18 + 0.09

• 0.9 + 0.18

• 0.27 - 0.09

Which equation matches the model?

• 0.73 - 0.23 = 0.50

• 0.50 + 0.23 = 0.73

• 0.73 + 0.23 = 0.50

• 0.73 - 0.50 = 0.23

Which problem is represented in the model?

• 0.32 - 0.17

• 0.49 - 0.32

• 0.32 + 0.17

• 0.49 - 0.17

Which of the following expressions matches the grid shown?

• 0.48 + 0.18 = 0.66

• 0.48 - 0.18 = 0.30

• 0.6 + 0.06 = 0.66

• 0.6 - 0.06 = 0.54

Which of the following expressions matches the grid shown?

• 0.22 - 0.23 = 0.45

• 0.45 + 0.22 = 0.23

• 0.23 - 0.22 = 0.01

• 0.22 + 0.23 = 0.45