a). 30 × 15 + 444 =
450 + 444 = 894
b). 40 × ( 189 - 95 ) =
40 × 94 = 3.760
c). 375 - 17 × 20 =
375 - 340 = 35
d). ( 128 + 674 ) × 7 =
802 × 7 = 5.614
e). 6 × ( 2 + 18 - 10 ) =
6 × ( 20 - 10 ) =
6 × 10 = 60
f). 12 × 9 + 4 × 150 =
108 + 600 = 708
g). 392 × 10 - ( 4 × 5 + 16 ) =
3.920 - ( 20 + 16 ) =
3.920 - 36 = 3.884