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Question

Hi, I don’t really understand the question, please explain to me and help me with a and b. Thank you 

Answer

Qixuan, use Use Stacking Model

After you draw your model, 1 block can be divided into 2 units.

(60 – 7 – 3.5)/(1 + 4×2) = 5.5        (4 x 2 = 8  the 4 blocks is 8 units)

1 unit = 5.5

(b) 5.5 x 2 = 11

Sally spent $11.

5×5.5 + 3.5 = 31

Yati had $31 at first.

 

 

0 Replies 0 Likes

Qixuan, use Use Stacking Model

After you draw your model, 1 block can be divided into 2 units.

(60 – 7 – 3.5)/(1 + 4×2) = 5.5        (4 x 2 = 8  the 4 blocks is 8 units)

1 unit = 5.5

(b) 5.5 x 2 = 11

Sally spent $11.

5×5.5 + 3.5 = 31

Yati had $31 at first.

 

 

0 Replies 0 Likes
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