Question

Resolva
(((147×7)×11)×13÷(50×20+1)

147×1001-147×1000

6×(10 000+100+1)-6×(3×7×13×37

(123456×9+7)-(1234567-123456)

Answer 1

a)[(147 x 7) x 11] x 13 ÷ (50 x 20) ÷ 1
(1029 x 11) x 13
11319 x 13
147147

(50 x 20)
1000

Logo
147147 ÷ 1000 ÷ 1

Para resolver conservamos (147147) e multiplicamos pelo inverso de (1000 ÷ 1) 
 
147147 × 1 ÷ 1000
147147 ÷ 1000
147,147

b)
147 x 1001 - 147 x 1000
147147 - 147000
 147

c)
6 x (10.000 + 100 + 1) - 6 x ( 3 x 7 x 13 x 37)
6 x 10101 - x 10101
612.120.600

d)
(123456 x 9 + ) - ( 1234567 - 123456)
1.111.111 - 1.111.111
0