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Warmup - 12/3

Last updated 9 months ago

4 questions

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Question 1

1.

Ann is 10.5 years old. Marco is 117/12 years old. How many years older is Marco than Ann?

221/12 years

11/12 years

12/12 years

22 years

Question 2

2.

An expression is shown below.

7 + 4 × 10 ÷ 2 + (7/3 – 1/3)

Which of the following could be a step used to simplify this expression?

 110 ÷ 2 + 7/3 – 1/3

7 + 20 + 2

11 × 10 ÷ 2 + 6/3

7 + 4 × 10 ÷ 4

Question 3

3.

An expression is shown below.

[(3 • 4 – 2) ÷ 2] ÷ (31 – 27)

Which of the following represents this expression after a possible first step in the simplification process?

[(3 • 2) ÷ 2] ÷ (31 – 27)

[3 • 4 – 1] ÷ (31 – 27)

(3 • 4 – 2) ÷ 2/4

[(12 – 2) ÷ 2] ÷ (31 – 27)

Question 4

4.

What is the value of the expression shown?

(3/4 + 5/8) – (3/8 + 1/4)

11/4

3/4

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