Subtracting Decimals Using Models

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

What equation matches this model?

• 0.7 - 0.44 = 1.14 
• 1.14 - 0.44 = 0.7
• 1.14 + 0.7 = 0.44
• 0.7 + 0.44 = 1.14

Which equation matches this model?

• 0.2 + 0.3 = 0.5

• 2 + 3 = 5

• 0.02 + 0.03 = 0.05

• blue + red = purple

• 1 + 0.5 = 1.5

• 0.8 + 0.7 = 1.5

• 0.08 + 0.07 = 0.15

• Redurple

• 0.34 + 0.29 = 0.63

• 0.30 + 0.33 = 0.63

• 3.4 + 2.9 = 6.3

• Go Chargers

• 122 + 0.044 = 3,657

• 1 + 0.44 = 1.44

• 1.22 + 0.22 = 1.44

• Amurica

• 0.9 - 0.3 = 0.6

• 9 - 3 = 6

• 1 - 0.3 = 0.7

• Criss Kross will make ya...

• 4 - 1 = 3

• 0.04 - 0.01 = 0.03

• 0.4 - 0.1 = 0.3

• Orange you glad it's not this

• 0.70 - 0.09 = 0.61

• 0.70 + 0.05 = 0.75

• 0.70 - 0.10 = 0.60

• Follow the Yellow Brick Road

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