Decimal Add Model

What does the model represent?

• 9.10
• 0.09
• 0.9
• 0.99

Which of the decimals is equivalent to the value represented by the hundreds grid?

• 0.37
• 0.38
• 0.83
• 0.86

What does the model represent?

• 0.13
• 0.31
• 31
• 3.1

Which decimal represents the amount shaded on the models?  

• 183
• 1.83
• 1.083
• 0.83

What operation does this model show?

• Adding 
• Subtracting
• Multiplying
• Dividing

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 operation does this model show?

• Adding 
• Subtracting
• Mutliplying
• Dividing

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

What equation matches this model?

• 0.32 + 0.17 = 0.49
• 0.32 - 0.17 = 0.49
• 0.49 - 0.17 = 0.32
• 0.49 + 0.17 = 0.32