六年级数学上册 第六单元《百分数》计算综合训练
班级:________ 姓名:________ 评价:________
1. 口算
① 20%÷0.2 = ② 80×15% = ③ 6.3 + 3.7% =
④ 45÷90% = ⑤ 25×40% = ⑥ 3 - 60% =
⑦ 30%÷0.3 = ⑧ 70×30% = ⑨ 4.8 + 5.2% =
⑩ 56÷80% = 18×50% = 5 - 25% =
40%÷0.4 = 90×10% = 7.2 + 2.8% =
63÷70% = 32×25% = 4 - 15% =
50%÷0.5 = 60×25% = 2.1 + 7.9% =
2. 分数、小数化成百分数
① =( )% ② =( )% ③ =( )%
④ 0.125 =( )% ⑤ 0.34 =( )% ⑥ 2.6 =( )%
⑦ =( )% ⑧ =( )% ⑨ =( )%
⑩ 0.08 =( )% 0.72 =( )% 4.5 =( )%
=( )% =( )% =( )%
0.42 =( )% 0.03 =( )% 1.8 =( )%
=( )% =( )% 0.95 =( )%
3. 百分数化成分数或小数
① 12.5% = ② 120% = ③ 0.5% =
④ 37.5% =( ) ⑤ 1.2% =( ) ⑥ 125% =( )
⑦ 15% = ⑧ 240% = ⑨ 0.8% =
⑩ 62.5% =( ) 2.5% =( ) 150% =( )
22.5% = 180% = 1.5% =
87.5% =( ) 3.2% =( ) 175% =( )
35% = 260% = 2.4% =( )
4. 解方程
① ② ③ 15 - 25%x = 10
④ ⑤ ⑥ 20 - 40%x = 12
⑦ ⑧ ⑨ 18 - 15%x = 12
⑩ 25 - 30%x = 10
30 - 20%x = 18
35 - 10%x = 28
40 - 15%x = 25
5. 计算下列各题,能简算的要简算
① ② ③ 4.2×70% - 0.7×0.2
④ ⑤ ⑥ 6.5×60% - 0.6×2.5
⑦ ⑧ ⑨ 7.8×50% - 0.5×3.8
⑩ 8.4×40% - 0.4×4.4
9.6×30% - 0.3×5.6
10.5×20% - 0.2×6.5
11.2×10% - 0.1×7.2
答案
1. 口算
① 1 ② 12 ③ 6.337
④ 50 ⑤ 10 ⑥ 2.4
⑦ 1 ⑧ 21 ⑨ 4.852
⑩ 70 9 4.75
1 9 7.228
90 8 3.85
1 15 2.179
2. 分数、小数化成百分数
① 15 ② 34 ③ 92
④ 12.5 ⑤ 34 ⑥ 260
⑦ 17.5 ⑧ 95 ⑨ 62
⑩ 8 72 450
36 52.5 74
42 3 180
55 67.5 95
3. 百分数化成分数或小数
① ② ③
④ 0.375 ⑤ 0.012 ⑥ 1.25
⑦ ⑧ ⑨
⑩ 0.625 0.025 1.5
0.875 0.032 1.75
0.024
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 27 ② 0.2 ③ 2.8
④ 44 ⑤ ⑥ 2.4
⑦ 23 ⑧ 0.1 ⑨ 2
⑩ 50 1.6
63 1.2
100 0.8
93 0.4