小学五年级计算

小学五年级计算

小学五年级计算题

直接写出得数

```

0.32×5 = 1.6

1.8÷0.3 = 6

3.2-0.1 = 3.1

0.27÷0.03 = 9

1.8×20 = 36

0.01÷0.1 = 0.1

6.5×10 = 65

80×0.3 = 24

18×0.01 = 0.18

2.5-2.5÷5 = 2

0÷4.61 = 0

0.03×2.3 = 0.069

1.25×0.8 = 1

0.42÷0.7 = 0.6

1.5÷5 = 0.3

5.1÷0.3 = 17

2.3×0.4 = 0.92

5.6+5.4 = 11

0.25×4 = 1

6.36-2.6 = 3.76

```

用竖式计算

```

0.37×2.4 = 0.888

1.55÷3.8 ≈ 0.4 （保留一位小数）

```

递等式计算

```

5.5×8.2+1.8×5.5 = 55 （提取公因数5.5）

0.25×0.89×4 = 0.89 （交换律）

4.8×0.98 = 4.704

8.8×1.25 = 11

7.65÷0.85+1.1 = 10.1 （先除法后加法）

23.4÷5.2×3.2 = 14.4 （先除法后乘法）

```

解方程

```

1.8x = 72

x = 72 ÷ 1.8

x = 40

x÷5.4 = 1.2

x = 1.2 × 5.4

x = 6.48

x-32.5 = 94

x = 94 + 32.5

x = 126.5

x+4.2 = 14.8

x = 14.8 - 4.2

x = 10.6

```

口算

```

0.54÷0.001 = 540

1÷2.5 = 0.4

0.42÷1.4 = 0.3

1÷0.8×1÷12.5 = 0.1 （连续除法和乘法）

0.4×1.8 = 0.72

2.4÷0.12 = 20

4.2÷0.06 = 70

0.04×25 = 1

```

脱式计算

```

0.625÷0.25×4 = 10

7.25÷2.5÷4 = 0.725

8.75÷1.25+8.75×8 = 70 + 70 = 140

1.25×3.2×0.25 = 1

```

列竖式计算（带验算）

```

46.8÷72 = 0.65 （结果保留两位小数）

1.62÷45 = 0.036 （结果保留两位小数）

10.44÷0.74 = 14.14 （结果保留两位小数）

```

解方程