Question

Answer 1

a; =591-70=521

b: =4+7x9=63+4=67

c: =29-16-3x2=13-6=7

d: =21+9+5=35

Answer 2

a) 591 - 35.2 = 591 - 70 = 521

b) 100 : 5²+7.3²= 100 : 25 + 7.9 = 4 + 63 = 67

c) 29 -[16+3.(51-49)]= 29- [16+3.2] = 29- [16+6] = 29 - 22 = 7

d) 84 : 4+ 3⁹:3⁷+5 = 84:4+3²+5 = 84 : 4 + 9 + 5 = 21 + 9 + 5 = 30 + 5 = 35