Question

EXERSEAZĂ!
5 Calculează:
a) 7 x 84 6x7 - 3x7
9 + 5 x 6 - 25:5
b) 7 x 6 - 12 + 7 x 10
15 - 15:3+ 2 x 5 x 5
c)
400 + 5 x 8 + 72:9-48
300-64:8 + 6x6 - ​

Answer 1

Răspuns:

a) 7x84 =  588

6x7 - 3x7 = 42-21 = 21

9 + 5x6 - 25:5 = 9 + 30 - 5 = 34

b) 42 - 12 + 70 = 30 + 70 = 100

15 - 15:3 + 2x5x5 = 15 - 5 + 50 = 60

c) 400 + 40 + 8 - 48 = 400

300 - 8 + 36 = 292 + 36 =   328