Question

Calculează 7×5+24:8=. 3×3×5-9= . 12+72:9×3:6. 28:7:2×9:3×6:4= . (5+5×5):6×2×4:8=. (7×7+28:4):(81:9-12:6)= 36:6:3×9:6-36:9×6:8=.

Answer 1

1)7×5+24:8= 35+3=38; 2)3×3×5-9= 9×5-9= 45-9=36; 3)12+72:9×3:6= 12+8×3:6= 12+24:6= 12+4=16; 4)28:7:2×9:3×6:4= 4:2×9:3×6:4= 2×9:3×6:4= 18:3×6:4= 6×6:4= 36:4=9; 5) (5+5×5):6×2×4:8= (5+25):6×2×4:8= 30:6×2×4:8= 5×2×4:8= 10×4:8= 40:8=5; 6)(7×7+28:4):(81:9-12:6)= (49+7):(9-2)= 56:7=8; 7)36:6:3×9:6-36:9×6:8= 6:3×9:6-36:9×6:8= 2×9:6-36:9×6:8= 18:6-36:9×6:8= 3-4×6:8=