Decimal Subtraction Using Models or Drawings

Which of the following expressions matches the grid shown?

• 0.57 + 0.33 = 0.90

• 0.33 - 0.24 = 0.09

• 0.57 - 0.33 = 0.24

• 0.43 - 0.33 = 0.24

What equation matches the strip diagram?

• $7,362.36 - $4.892.49 = L

• $7,362.36 + $4.892.49 = L

• $4.892.49 - $7,362.36 = L

•  $7,362.36 + L = $4.892.49

What is this image an example of?

2 answers!

• Subtracting using models

• Subtracting using partial sums

• Subtracting using drawings

Add or subtract?

• Add

• Subtract

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

The model demonstrates a subtraction expression.

Which expression does the model demonstrate?

• 1.0 - 0.52

• 0.52 - 1.0

• 1.0 - 52.0

• 100 - 0.52

• 1.5 - 0.6 = 0.9

• 1.5 - 0.5 = 1

• 1.5 - 0.06 = 0.09

• I love bananas

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