文档介绍：四年级小数乘除法计算题 1 ÷ 1641 .84 ÷72 ÷9 ÷105 ÷ 1 ÷ 36 ÷ 23 × 12 ÷7 × 24 ÷ 210 ÷ ÷ × ÷ 8 ÷ × ÷ ÷ 15 ÷ 1 × × × 96 × × 2 ÷ 5× ÷ × × ÷ 0 .61 × ÷ × 55 × ÷ × 831 × 61 × × × × × ÷ 1 × × × × 85 ÷ ×8 (循环小数的用简便方法,除不尽保留 2位小数): ÷ ÷ ÷ ÷3 ÷ 32 ÷ 42 ÷ ÷ ÷ ÷ 用竖式计算 ÷ = ÷ = ×1. 3= ×1. 5= ×1. 4=1 × 36= × = × ≈ ×3=1 × 22 ÷ × ÷ ÷ ÷ ÷ = × 1 ÷ × × 1 ×5 × × ÷ × × ÷ 25 × × = × = × ≈(保留两位小数) ÷ = (保留三位小数) ÷ = (商用循环小数) ÷ = (用乘法验算) × = (用除法验算) 3、脱式计算(能简算的要简算) × ×4 × 99 + × + × 99+ × 50 × 64 - × 26 × + × 24 ( + ) × + × × ( ÷ ) ÷ × × × × × - 8.