Question

b) [15-(17-8-2)-2-5-3]-22 -10;
c) 5-32 +7 +11;
d) 48-52 +13-14;​

Answer 1

b) [15×(17-16)×2-5×3]×4-10

=(15×1×2-15)×4-10

=(15×2-15)×4-10

=(30-15)×4-10

=15×4-10

=60-10

=50

c)

${5}^{3}-{3}^{2} + {7}^{2} + {11}^{2} = 125 - 9 + 49 + 121 = 116 + 49 + 121 = 165 + 121 = 286$

d)

${4}^{3} - {5}^{2} + {13}^{0} - {14}^{1} = 64 - 25 + 0 - 1 = 39 + 0 - 1 = 39 - 1 = 38$