Indices Revision Stage 4 SACHS

Which number is divisible by 3?

24 300
18521
30 323
9191

Which number is divisible by 6?

24 302
18521
30 324
9191

The HCF of 100 (2 x 2 x 5 x 5)

             and 80 (2 x 2 x 2 x 2 x 5) is:

2 x 5
2 x 2 x 5
2 x 2 x 5 x 5
2 x 2 x 2 x 2 x 5 x 5
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Find,
2 x 3
3 x 11
2 x 11
2 x 3 x 11

What is 150 ÷ 5 × 3?

9
10
30
90

What is 4+ 3 × 23?

27
40
152
392
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Given 196 = 2 x 2 x 7 x 7,

2
7
14
27
4
6
8
12

23 =

2 and 3
3 and 4
5 and 6
7 and 8

√10 is between;

√12 = √10 + √2
TRUE
FALSE
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