1) 725x(9+1) = 725x10 = 72502) 725x9 + 725x1 = 6525 + 725 = 72503) 75x(10+1) = 75x11 = 8254) 971 + 21 + 8x385 = 971 + 21 + 3080 = 40725) (64 + 36) x 723 = 100 x 723 = 723006) 85 x (1000 + 100) = 85 x 1100 = 93500
1) 725x(9+1) = 725x10 = 7250
2) 725x9 + 725x1 = 6525 + 725 = 7250
3) 75x(10+1) = 75x11 = 825
4) 971 + 21 + 8x385 = 971 + 21 + 3080 = 4072
5) (64 + 36) x 723 = 100 x 723 = 72300
6) 85 x (1000 + 100) = 85 x 1100 = 93500