Помогите. Упражнение 9. Вычисли: а) Образец. 38*5=(30+8)*5=150+40=190 16*9, 4*26, 35*8, 7*23, 55*3, 5*47, 62*7, 3*19, 45*4, 6*52, 29*7, 8*76. Б) Образец. 57:3=(30+27):3=10+9=19 72:2, 72:3, 64:4, 64:2, 96:8, 96:6, 75:5, 75:3, 84:3, 84:7, 92:4, 92:2, спасибо.
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