
第六单元《百分数》计算能力综合训练题(5大类) 班级:_____ 姓名:_____ 评价:_____ 1. 口算 ① 20%÷0.2 = ② 50×30% = ③ 6.3 + 3.7% = ④ 45÷90% = ⑤ 20×15% = ⑥ 3 - 60% = ⑦ 12%÷0.12 = ⑧ 80×25% = ⑨ 4.2 + 5.8% = ⑩ 72÷80% = 40×10% = 5 - 25% = 30%÷0.3 = 60×40% = 2.1 + 7.9% = 54÷60% = 30×20% = 4 - 40% = 2. 分数、小数化成百分数 ① = ( )% ② = ( )% ③ = ( )% ④ = ( )% ⑤ = ( )% ⑥ = ( )% ⑦ 0.125 = ( )% ⑧ 0.375 = ( )% ⑨ 0.625 = ( )% ⑩ 0.875 = ( )% 0.08 = ( )% 0.04 = ( )% = ( )% = ( )% = ( )% 2.4 = ( )% 1.8 = ( )% 0.005 = ( )% 3. 百分数化成分数或小数 ① 12.5% = ② 37.5% = ③ 62.5% = ④ 87.5% = ⑤ 24% = ⑥ 36% = ⑦ 4.5% = ( ) ⑧ 8.2% = ( ) ⑨ 12.8% = ( ) ⑩ 250% = ( ) 150% = ( ) 75% = ( ) 0.5% = 1.5% = 2.5% = 120% = ( ) 180% = ( ) 300% = ( ) 4. 解方程 ① ② ③15 - 30%x = 9 ④ ⑤ ⑥20 - 40%x = 12 ⑦ ⑧ ⑨18 - 25%x = 10 ⑩ 24 - 50%x = 14 30 - 60%x = 12 36 - 75%x = 9 5. 计算下列各题,能简算的要简算 ① ② ③ 4.8×75% - 0.75×1.8 ④ ⑤ ⑥ 6.5×60% - 0.6×3.5 ⑦ ⑧ ⑨ 7.2×80% - 0.8×4.2 ⑩ 8.1×90% - 0.9×5.1 9.3×50% - 0.5×6.3 10.4×40% - 0.4×7.4 答案 1. 口算 ① 1 ② 15 ③ 6.337 ④ 50 ⑤ 3 ⑥ 2.4 ⑦ 1 ⑧ 20 ⑨ 4.258 ⑩ 90 4 4.75 1 24 2.179 90 6 3.6 2. 分数、小数化成百分数 ① 15 ② 44 ③ 85 ④ 70 ⑤ 38 ⑥ 92 ⑦ 12.5 ⑧ 37.5 ⑨ 62.5 ⑩ 87.5 8 4 9 26 52.5 240 180 0.5 3. 百分数化成分数或小数 ① ② ③ ④ ⑤ ⑥ ⑦ 0.045 ⑧ 0.082 ⑨ 0.128 ⑩ 2.5 1.5 0.75 1.2 1.8 3 4. 解方程 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ 5. 计算下列各题,能简算的要简算 ① 39 ② 0.2 ③ 2.25 ④ 40 ⑤ 0.25 ⑥ 1.8 ⑦ 55 ⑧ 0.2 ⑨ 2.4 ⑩ 38 2.7 1.5 1.2
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