Question

calculează 2×5+3×6-42÷7= 7×7-10×3+27= 100÷10+4×2×5-50= 63÷9+18÷9×7-15:3= 400-263+6×3÷9= 81÷9÷3÷3×0+2×9-17= 49÷7+21÷3-14÷2= 572+100÷10×8-497= 1×2×3×4÷4-5+129= 27÷3×9-75+8×5÷10×3= 8×7+36÷6×2-72÷8+5×2×4= 9×9-9÷9+7×7÷7-7+2×10÷4= va rog ma ajuta cineva dau coroana e urgent plissss​

Answer 1

2×5+3×6-42÷7=

=10+18-6

=28-6

=22

7×7-10×3+27=

=49-30+27

=19+27

=46

100÷10+4×2×5-50=

=10+8×5-50

=10+40-50

=50-50

=0

63÷9+18÷9×7-15:3=

=7+2×7-5

=7+15-5

=22-5

=17

400-263+6×3÷9=

=400-263+18:9

=400-263+2

=137+2

=139

81÷9÷3÷3×0+2×9-17=

=9:3:3×0+18-17

=3÷3×0+18-17

=0+1

=1

49÷7+21÷3-14÷2=

=7+7-7

=14-7

= 7

572+100÷10×8-497=

=572+10×8-497

=572+80-497

=652-497

=155

1×2×3×4÷4-5+129=

=6×4:4-5+129

=24:4-5+129

=6-5+129

=1+129

=130

27÷3×9-75+8×5÷10×3=

=9×9-75+40:10×3

=81-75+4×3

=6+12

=18

8×7+36÷6×2-72÷8+5×2×4=

=56+6×2-9+10×4

=56+12-9+40

=68-9+40

=59+40

=99

9×9-9÷9+7×7÷7-7+2×10÷4=

=81-1+49:7-7+20:4

=80+7-7+5

=87-7+5

=80-5

=75