完整word版三年级下册数学竖式计算和脱式计算

竖式计算4 3 × 1 2 = 3 4 × 2 6 = 6 0 × 4 5 = 7 0 × 4 2 = 1 9 × 7 7 = 4 3 × 1 2 = 3 4 × 2 6 = 6 0 × 4 5 =