solve it urgent please
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ANS 1)
a) 23-(-6+[ 8-{9-6} ] )
= 23+6+[-72+48]
= 29+[-24]
=29-24
= 5
b) 100-56÷7+15×2
= 44÷7+ 30
= 74÷7
= 10.57
ANS 2)
a) HCF of 60-72
= 2×2×2×3×3×5
= 2×2×3×5
b) HCF of 18 - 48
= 2×2×2×2×3×3
=2×2×3
ANS 4 )
a) 12+10/12
=12/12
= 1
b) 23+17/7
= 40/7
ANS 5)
a) True
b) False
c) False
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