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# How do you know this expression equals 348? How did you use multiples of 10? - PowerPoint PPT Presentation

Brainstorm some equations that equal 348 using multiples of 10, multiplication, and subtraction. You may only use one number that is not a multiple of ten. How do you know this expression equals 348? How did you use multiples of 10?. Multiplicative Comparison 1.6A.

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Brainstorm some equations that equal 348 using multiples of 10, multiplication, and subtraction. You may only use one number that is not a multiple of ten.

How do you know this expression equals 348?

How did you use multiples of 10?

Multiplicative Comparison 1.6A 10, multiplication, and subtraction. You may only use one number that is not a multiple of ten.

Darlene picked 7 apples. Juan picked 4 times as many apples. How many apples did he pick?

Darlene

Juan

7 x 4 = 28

Multiplicative Comparison 1.6A 10, multiplication, and subtraction. You may only use one number that is not a multiple of ten.

Franco’s daughter is 2 feet tall. Franco is 3 times as tall as his daughter. How tall is he?

Where is the x 3?

What equation can we write to represent what’s happening in this problem?

Where is the 2 in this problem?

2 x 3 =

Multiplicative Comparison 10, multiplication, and subtraction. You may only use one number that is not a multiple of ten.

A tree in Helena’s yard is 35 feet tall. Helena is 5 feet tall. The tree is how many times as tall as Helena?

5 ft.

5 ft.

5 ft.

35 feet

5 ft.

5 ft.

35 ft. = 5 ft. x

5 ft.

5 ft.