Question

Tính:

a) 7 + 43 x 2

b) 8 + 15 : 3

c) 312 x 2 – 5

d) 900 : 3 – 20

Answer 1

a) 7 + 43 x 2 = 7 + 86 = 93

b) 8 + 15 : 3 = 8 + 5=13

c) 312 x 2 – 5 = 624 - 5= 619

d) 900 : 3 – 20= 300 -20=280