登录
1. 直接写出得数。
9.3-3.6=
7.8×0.1=
1.4÷0.5=
4.8+0.6-1.5=
7.23-4.25=
5.4÷0.3=
0.15÷50=
3-1.22-1.28=
11.2×0.8=
0.9×7=
100×0.52=
1.5×4÷0.6=
4.25×2=
7.05+2.85=
0.96÷0.6=
6.06÷0.2×0.1=
2.5×0.1=
2.9×5=
3.2÷0.5=
3.9÷0.13×10=
7.8a-5.6a=
4m-2.65m=
0.9a×0.4a=
7.3x-5x+2=
1.9x+2.1x=
10.1b-0.01b=
1.4m×0.3m=
4.5a-(3-1.5a)=
0.36a÷3=
1.4n×2=
6.6b÷1.1=
4.8m×0.1m÷0.1=
9.3-3.6=
5.7
7.8×0.1=
0.78
1.4÷0.5=
2.8
4.8+0.6-1.5=
3.9
7.23-4.25=
2.98
5.4÷0.3=
18
0.15÷50=
0.003
3-1.22-1.28=
0.5
11.2×0.8=
8.96
0.9×7=
6.3
100×0.52=
52
1.5×4÷0.6=
10
4.25×2=
8.5
7.05+2.85=
9.9
0.96÷0.6=
1.6
6.06÷0.2×0.1=
3.03
2.5×0.1=
0.25
2.9×5=
14.5
3.2÷0.5=
6.4
3.9÷0.13×10=
300
7.8a-5.6a=
2.2a
4m-2.65m=
1.35m
0.9a×0.4a=
0.36a²
7.3x-5x+2=
2.3x+2
1.9x+2.1x=
4x
10.1b-0.01b=
10.09b
1.4m×0.3m=
0.42m²
4.5a-(3-1.5a)=
6a-3
0.36a÷3=
0.12a
1.4n×2=
2.8n
6.6b÷1.1=
6b
4.8m×0.1m÷0.1=
4.8m²
答案
5.7 0.78 2.8 3.9 2.98 18 0.003 0.5 8.96 6.3 52 10 8.5 9.9 1.6 3.03 0.25 14.5 6.4 300 2.2a 1.35m 0.36a² 2.3x+2 4x 10.09b 0.42m² 6a-3 0.12a 2.8n 6b 4.8m²
2. 用竖式计算。(第一行得数保留两位小数)
36.02×0.3≈
4.73×8.14≈
83÷0.56≈
8.76÷2.4=
5.98÷0.23=
0.116×0.85=
竖式略
36.02×0.3≈
10.81
4.73×8.14≈
38.50
83÷0.56≈
148.21
8.76÷2.4=
3.65
5.98÷0.23=
26
0.116×0.85=
0.0986
竖式略
答案
10.81 38.50 148.21 3.65 26 0.0986 竖式略
解析
36.02×0.3≈10.81
4.73×8.14≈38.50
83÷0.56≈148.21
8.76÷2.4=3.65
5.98÷0.23=26
0.116×0.85=0.0986
4.73×8.14≈38.50
83÷0.56≈148.21
8.76÷2.4=3.65
5.98÷0.23=26
0.116×0.85=0.0986
许达从家去少年宫,只能向西或向南走,一共有(
6
)种不同的走法；如果许达还要经过书店买书,一共有(4
)种不同的走法。答案
6 4
