Question

calculati si comparati.
1) 4×(10-3) 4×10-4×3
2) 5×(9-6) 5×9-5×6
3) (8-2)×3 8×3-2×3
4) (6-4)×7 6×7-4×7

Answer 1

1) 4*10 - 4*3 = 40-12=28 
2) 5*9-5*6=45-30=15
3) 8*3-2*3= 24-6=18
4) 6*7-4*7=42-28=14.