Question

:calculeză:
$a)(660 \div 6 + 66 \div 6) - (7 \times 3 + 2) =$
$b)800 \div 8 + (560 - 640 \div 2) =$
$c)(752 + 248 + 80) \div 9 + 440 \div 4 =$
$d)811 - 11 \times 11 \div 11 + 48 \div 2 \times 10 =$
$e)(12 + 12 \times 8 + 12 \div 4) \times (120 - 23 \times 5 =$
$f)94 - 100 - 4 \times 3) \div (5 \times 9 - 19 \div 6 =$​

Answer 1

a) (660:6+66:6)-(7×3+2)=

=(110+11)-(21+2)

=121-23

=98

b) 800:8+(560-640:2)=

=100+(560-320)

=100+240

=340

c) (752+248+80):8+440:4=

=(1000+80):8+220

=1080:8+220

=135+220

=355

d) 811-11×11:11+48:2×10=

=811-11+24×10

=800+240

=1040

e) (12+12×8+12:4)×(120-23×5)=

=(12+96+3)×(120-115)

=(108+3)×5

=111×5

=555

f) (94-100-4×3):(5×9-19:6)=

=(-6-12):(45-3,16)

=-18:41,83

=-2,32