Question

calcule as expressões numéricas


A.
$20 - 8 \div 4 + 5 \times 2 - 1 =$

B.
${2}^{3} \times 3 + {5}^{2} \div 25 - 10 =$

C.
$6 \times 8 \div 2 {}^{2} - 5 \times 2 + 3 {}^{0} =$

D.
$20 + 6 \times {2}^{3} - { 7}^{2} + {1}^{6} =$

Answer 1

A= 20-2+10-1
18+10-1
28-1=27

B= 8×3+25 : 25-10
24+1-10
23-10=1

C= 48 : 4-5×2+1
12-5×2+1
12-10+1
2+1 = 3

D= 20+6×8-49+1
20+48-49+1
68-50=18