口算练
4.25 × 4 = 17;0.07 × 0.5 = 0.035;33 × 0.04 = 1.32;6.5 × 4 = 26;2.3 × 0.06 = 0.138;15 × 0.08 = 1.2;0.09 × 0.9 = 0.081;4.7 × 0.1 = 0.47;54 × 0.8 = 43.2;1.6 × 0.03 = 0.048;0.8 × 0.9 = 0.72;0.6 × 100 = 60;17.5 × 0.01 = 0.175;3.2 × 0.5 = 1.6;25 × 0.4 = 10;12.5 × 0.8 = 10;6 × 6.5 = 39.
0.66 × 0.3 = 0.198;2.5 × 4.6 = 11.5;0.75 × 0.4 = 0.3;23 × 4.73 = 108.79;3.3 × 0.5 = 1.65.
4 - 1.4 = 2.6;82 - 7.2 = 74.8;19 + 9.1 = 28.1;4.1 - 0. = 3.21;5.68 + 0.42 = 6.1;0.72 - 0.24 = 0.48;0.8 + 0.18 = 0.98;0. - 0.25 = 0.;1 - 0.98 = 0.02;0.048 + 0.52 = 0.568;19.9 + 11.1 = 31;75 ÷ 10 = 7.5;1.32 × 8 = 10.56;0.9 × 0.3 = 0.27;0.13 × 7 = 0.91;4 × 0.3 = 1.2;430 - 250 = 180;0.17 + 0.06 = 0.23;1.02 - 0.09 = 0.93;7200 ÷ 800 = 9;0.17 + 0.6 = 0.77;0.83 - 0.6 = 0.23;0.98 - 0.09 = 0.;0.2 + 0.78 = 0.98;0.15 + 0.7 = 0.85;670 + 250 = 920;10.2 + 0.2 = 10.4;9.2 - 6 = 3.2;8500 ÷ 500 = 17;3.2 - 3.2 = 0;3.7 + 2.3 = 6;3.2 - 0.32 = 2.88;2 + 2.8 = 4.8;380 - 290 = 90;0.35 + 0.5 = 0.85;0.35 + 0.63 = 0.98.
0.7 × 6.5 = 4.55;0.4 × 7.7 = 3.08;0.09 × 2.2 = 0.198;0.4 × 0.32 = 0.128.
口算练
班级:______ 姓名:______
7500 ÷ 250 = 30,3.8 + 1 = 4.8,0.95 - 0.05 = 0.9,450 + 780 = 1230,3.1 + 0.3 = 3.4,630 ÷ 9 = 70,4.5 - 0.4 = 4.1,9.5 - 5 = 4.5,330 × 9 = 2970,9.53 - 1.53 = 8,9.5 - 0.5 = 9,3.5 + 2.4 = 5.9,1 - 0.95 = 0.05,0.3 + 0.27 = 0.57,0.47 + 0.13 = 0.6,4.5 + 4 = 8.5,4 - 0.6 = 3.4
0.74 + 0.16 = 0.9,0.53 ÷ 100 = 0.0053,5.1 + 2.3 = 7.4,0.52 + 0.4 = 0.92,0.6 - 0.37 = 0.23,0.5 × 1000 = 500,0.82 + 0.3 = 1.12,13.5 + 6.5 = 20,1.2 - 0.8 = 0.4,21.6 - 12.6 = 9,0.76 + 0.14 = 0.9,30 × 100 = 3000,0.92 - 0.2 = 0.72,3.5 + 4.8 = 8.3,5 + 0.07 = 5.07,1 - 0.61 = 0.39,3.7 + 0.33 = 4.03,0.51 + 0.33 = 0.84,1 - 0.6 = 0.4,8 - 4.6 = 3.4,5.8 - 3.6 = 2.2,0.52 + 0.4 = 0.92,6.45 + 5.5 = 11.95,3.4 - 2.8 = 0.6,9.53 - 1.53 = 8
以上是口算练,希望同学们认真完成。
0.72 ÷ 0.3 = 2.4
4.62 ÷ 0.6 = 7.7
100 - 35.22 = .78
10 ÷ 20 = 0.5
4.5 × 2 = 9
0.32 = negative 0.32
3.6 ÷ 0.3 = 12
0.125 × 8 = 1
0.36 ÷ 0.4 = 0.9
0.8 × 1.1 = 0.88.7.2 + 12.8 = 20.so 0.8 × 1.1 = 20
5.2 ÷ 13 = 0.4
24 ÷ 15 = 1.6
4.95 × 1000 = 4950
9 = 1.xxxxxxxx667
0.1 = 3.25
4 = 13.12
0.1 = 0.328
0.8 = 3.52
1.55 ÷ 0.5 = 3.1
0.38 ÷ 0.1 = 3.8
0.27 ÷ 0.9 = 0.3
0.46 ÷ 0.1 = 4.6
1.92 ÷ 0.4 = 4.8
2.3 × 4 = 9.2
24 ÷ 15 = 1.6
2.5 = negative 2.5
1.4 × 0.5 = 0.7
6.3 ÷ 7 = 0.9
4.8 ÷ 0.3 = 16
0. ÷ 0.8 = 0.8
12.5 ÷ 5 = 2.5
8.65 × 10 = 86.5
6.9 × 0.1 = 0.69
0.8 = 0.135
100 = 250
0.1 = 0.39
1.2 ÷ 0.8 = 1.5
0.04 = 0
3.15 ÷ 0.7 = 4.5
1.36 ÷ 0.2 = 6.8
0.48 ÷ 0.2 = 2.4
0.22 ÷ 0.2 = 1.1
0.9 ÷ 0.3 = 3
2.5 × 0.4 = 1
0.35 × 0.6 = 0.21
7.2 × 0.8 = 5.76
0.75 × 100 = 75
5.6 ÷ 100 = 0.056
0.96 ÷ 2 = 0.48
0.72 ÷ 3.6 = 0.2
3.8 = negative 3.8
1. ÷ 41 = 0.04
0.35 × 0.6 = 0.21
0.4 × 0.5 = 0.2
2 = divided by 2
8 = 6.4
0.13 = 0
0.07 ÷ 0.7 = 0.1
1.7 = 0
1.86 ÷ 0.2 = 9.3
1.16 ÷ 0.4 = 2.9
8.73 ÷ 0.9 = 9.7
3.45 ÷ 0.5 = 6.9
5.11 ÷ 0.7 = 7.3
2.4 × 5 = 12
五年级上册口算
四)
班级: 姓名:
0.35 ÷ 0.1 = 3.5
3.92 ÷ 0.8 = 4.9
4.32 ÷ 0.9 = 4.8
0.24 ÷ 0.8 = 0.3
3.15 ÷ 0.7 = 4.5
0.98 ÷ 0.7 = 1.4
1.8 ÷ 0.6 = 3
1.76 ÷ 0.4 = 4.4
2. ÷ 0.4 = 6.6
7.56 ÷ 0.9 = 8.4
1.19 ÷ 0.7 = 1.7
1.53 ÷ 0.9 = 1.7
1.33 ÷ 0.7 = 1.9
1.18 ÷ 0.2 = 5.9
0.09 ÷ 0.1 = 0.9
0.21 ÷ 0.1 = 2.1
1.54 ÷ 0.2 = 7.7
7.44 ÷ 0.8 = 9.3
3.69 ÷ 0.9 = 4.1
0.8 × 7 = 5.6
10.3 × 2 = 20.6
10 × 0.05 = 0.5
12.5 × 8 = 100
2.6 × 3 = 7.8
3.5 × 0.01 = 0.035
4.1 × 2 = 8.2
1 × 0.06 = 0.06
10 - 3.52 = 6.48
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0.35乘以0.3等于0.105,1.4乘以5等于7,2.8乘以4等于11.2,19.6除以4等于4.9,4除以0.5等于8,7.5除以1.5等于5,10除以2.5等于4,3.52除以1等于3.52,1.5除以3等于0.5,2.2乘以6等于13.2,0.42除以7等于0.06,0.42除以0.6等于0.7,0.48除以0.8等于0.6,0.9除以4.8等于0.1875,8.4除以0.16等于52.5,2.9除以100等于0.029,1.5除以0.9等于1.6667.
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