1) -5+10= a) 5 b) -15 c) -5 d) -10 2) -8-9= a) 1 b) -17 c) 17 d) -1 3) -8x3= a) 24 b) -21 c) -24 d) 21 4) 63 divided by -9= a) 7 b) -8 c) 9 d) -7 5) what is cm ( common multiples) of 6 and 8 a) 24 and 48 b) 32 and 36 c) 40 and 42 d) 16 and 18 6) what is the LCM ( lowest common multiple ) of 4 and 3 a) 24 b) 12 c) 36 d) 42 7) what is the HCF ( highest common multiple) of 21 and 54 a) 7 b) 3 c) 4 d) 6 8) which of these number are divisible by 8 a) 73248 b) 1977 c) 2354 d) 5674 9) is 84372 divisible by a) 6 b) 7 c) 4 d) 8 10) what is the square root of 20 a) 200 b) 400 c) 800 d) 600 11) what is the square root of 17 a) 289 b) 288 c) 221 d) 298 12) what is the square root of 14 a) 169 b) 225 c) 196 d) 168 13) what is the cube root of 8 a) 164 b) 213 c) 432 d) 512 14) what is the cube root of 4 a) 64 b) 52 c) 83 d) 124 15) what is the cube root of 9 a) 312 b) 729 c) 199 d) 834

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