Ch. 4

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1 point

Find the LCM of 10, 12, 15

Hint: List or PFT
2 x 5
2 x 2 x 3 Solve: 2 x 2 x 3 x 5=
3 x 5

1 point

Compare.

1 2/5 ______ 1.40

1 point

405

It is divisible by?

3,5,9 only

2,3 only

3 only

6, 10 only

1 point

Find the Greatest Common Factor.

24 and 36

None of the above

1 point

Which fraction below is equivalent to 18/20?

3/4

5/6

9/10

None of the above

1 point

Which choice below is the correct prime factorization for 72?

2 x 2 x 3

2 x 2 x 2 x 3 x 3

12 x 6

None of the above

1 point

2 x 2 x 2 x 2 x 5

This is the prime factorization for what number?

1 point

Compare.

2 3/5 _______ 2 7/11

1 point

Write this decimal as a fraction. Simplify, if possible.

0.58

29/50

58/100

58/10

10.

1 point

Find the Greatest Common Factor.

20, 25, 30

11.

1 point

19

Prime or Composite?

Prime

Composite

12.

1 point

Find the LCM for 4 and 8

Hint: PFT 2 x 2
2 x 2 x 2

*To find your answer multiply the three two's in 8's PFT

13.

1 point

Order least to greatest.

1 5/6, 1 7/9, 35/36, 1.75

1 5/6, 1.75, 1 7/9, 35/36

1 5/6, 1.75, 35/36, 1 7/9

35/36, 1.75, 1 7/9, 1 5/6

None of the above

14.

1 point

51

Prime or Composite?

Composite

Prime

15.

1 point

Write this fraction as a decimal.

17/40

0.234

0.876

0.856

0.425

16.

1 point

837

It is divisible by?

2,3, 5

2,3, 5, 6

3, 9

2, 3, 5

17.

1 point

Simplify 34/51

2/5

2/3

3/7

1/3

18.

1 point

Find the LCM of 6 and 11

Strategy: List or PFT

Hint: 2 x 3
1 x 11 Solve: 2 x 3 x 11 x 1

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