Doubles and Halves (Multiply by 2, 1/2, 50%, Dividing by 2)

 $2\times40$  

(a)  

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CCSS.3.NBT.A.3

 $\frac{1}{2}\times400$  

(a)  

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

 $50\%\times140$  

(a)  

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CCSS.6.RP.A.3C

 $600\div2$  

(a)  

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CCSS.4.NBT.B.6

 $160\div2$  

(a)  

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CCSS.4.NBT.B.6

 $\frac{1}{2}\times10'000$  

(a)  

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

 $2\times800$  

(a)  

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CCSS.5.NBT.B.5

 $50\%\ \times80$  

(a)  

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CCSS.6.RP.A.3C

 $\frac{1}{2}\times120$  

(a)  

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

 $\frac{1}{2}\times1600$  

(a)  

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C