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English 13 Public

Unit 2

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5 + 7 x 2

19

5

solve

149

20

7215 x 23

165,945

25

2275 ÷ 7

325

10

350 ÷ 14

25

25

164,829 + 320,014

484,843

15

326,000 - 12,957

313,043

25

The prime factorization of 72 is ..........

3 x 3 x 2 x 2 x 2

20

Is 39 a prime number?

NO.. because it's divisible by 1, 39, 3 and 13

5

Is 351 divisible by 9?

Yes

5

solve:

4096

25

Is 144 a square number?

YES

5

165 ÷ ....... = 45 ÷ 9

33

25