2-1.09= [ ] A．0.54 B．1.84 C．3.11 D．5.4 题目和参考答案——青夏教育精英家教网—

0.36÷9=	3.97-2.45=	16×25=	5.2+3.8=
8.282÷8.2=	10-0.87=	4.3+1.8=	18.9-9.8=
0.8÷0.1=	0.3+0.36=	1.14×0.2=	7.8÷3=
0.8×15=	0.125×8=	4-1.08=	9×1.8=
1.2×8=	7.82+1.18=	30.5÷2=	1.8×0.2=
0.75÷30=	0.25×3=	4.8+1.2=	0.5×48=
0.7×7=	1.1×9=	25×0.8=	3.2×5=
3×1.2=	2.04×4=	0.72+2.8=	0×3.97=
0.13×80=	18×30=	50×4.1=	0.125×2=
6×0.75=	1.01-0.89=	9.767×0=	0.02×0.3=
3.9÷5=	1÷0.125=	70÷5=	0÷9.126=
0.7²=	16.5÷0.15=	7÷1.4=	1.21÷11=
0.84÷0.42=	0.7×0.9=	0.3×400=	5.1÷0.3=
8.3+1.7=	4.9÷0.7=	0.3+0.3+0.3=	0.81÷0.9×5=
（0.9+8.1）×5=	0.3²=	9.3÷（4.2-1.1）=	1.7×0.6÷1.7=

直接写出得数

2.5×0.4=	1.7+5=	0.72÷0.6=	7.96-7.9=	1.5÷0.3=
2.8×0=	1.5×6=	0.25×16=	2.5×100=	4.8÷6=
0.5×0.9=	6.1-6.1=	0.12×5=	4.8+5.7=	28-3.6-4.4=
5÷2.5=	（4.8+3.2）÷4=	8.4÷21=	0.5×0.08=	8.3÷0.01=
0.5÷0.5+0.5÷0.5=	4-0.4=	2.4×0.5=	0.99+0.01÷10=

脱式计算，能简算的用简算． 5.5×17.3+6.7×5.5	1.5×105	9.07-22.78÷3.4
3.8+4.29+2.1+4.2	2.65×1.7+1.35×1.7	23.4÷7.8-2.1
0.75×18÷0.15	2.5×3.2×1.25	0.26×2.5+0.74×2.5+2.5
18.09-7.5×（0.14+1.06）	9÷[（38.02+1.98）×0.5	26×20.2-8.4-1.8
90-78.09+4.23	32.34÷2．l×0.45	15.32-1.8×5-3.46
（9-2.78）×15÷3.11	（1.36+4.85）÷（0.15×6）	3.6÷〔（1.3+0.6）×5〕
0.01+1.01×99	89.3×43+38×89.3+893×1.9	10.01×101-10.01
38×7.3+27×3.8	32×1.25×0.25	38.75-（24.5+8.75）

4.7+2.3=	4.5×2=	6.9-2.5=	7.2×0.8=
6×3.4=	0.62-0.32=	1.4×0.5=	0.75×100=
0.02×0.5=	3.6÷0.3=	6.3÷7=	5.6÷100=
0.75÷0.25=	0.125×8=	4.8÷0.3=	0.96÷2=
0.56÷28=	0.36÷0.4=	0.64÷0.8=	0.72÷3.6=
3.6÷24=	0.8×1.1=	7.2+12.8=	46.7-3.8=
12.8÷4=	5.2÷13=	12.5÷5=	1.64÷41=
10÷20=	24÷15=	8.65×10=	0.35×0.6=
3.08×0.01=	4.95×1000=	6.9×0.1=	0.4×0.5=
2.4÷0.8=	10.8÷9=	9.6÷0.8=	0.108÷2=
4.95÷0.9=	9.65÷0.1=	0.325×100=	2.5×8=
0.56÷0.7=	0.125×4=	3.28×0.1=	3.9÷0.13=
7.2×0.1=	0.01×0.1=	0.25×0.4=	1.6÷0.8=
1÷2.5=	1.25×0.8=	3.2÷0.04=	0÷1.7=
0.22×102=	9.6÷0.8=	5×0.24=	4.5-0.05=
3.9÷0.13	16.5÷0.5=	5×0.12=	24×0.5=
4.8×0.5=	2.8+4.2=	0.84÷2.1=	5÷0.25=
7.8÷0.01=	5.4÷0.6=	3.2÷5=	7×0.62=
0.56÷0.8=	7.4-2.8=	0.18÷0.2=	0.16÷8=
4.5×0.02=	8+7.2=	1.2×30=	0.012×0.2=
7.3×0.3=	9÷6=	3.6÷0.12=	7.8÷0.6=
2÷5=	4.5+5=	0.3÷0.6=	0.96÷0.2=
10.5×0.4=	7.3+0.27=	8×0.125=	0.54÷0.6=
0.61+0.39=	0.56÷28=	10÷20=	4.08÷0.4=
11-9.4=	0.8×0.11=	0.72+12.8=	5.6÷0.01=
2.3×100=	0.75×100=	0.108÷2=	10.8÷9=
0.7÷0.8=	16-5.07=	4.2×0.4=	0.72×6=
12÷0.5=	5.2×0.4=	12.2÷0.2=	5.6÷100=
0.41+3.7=	0.02×0.5=	7.2-0.8=	1.4×0.5=
84÷0.21=	0.75÷0.25=	2.5×16=	0.108÷2=
1.75+32.5=	16-5.07=	5.2÷13=	1.64÷41=
1.02×0.2=	0.26×0.3=	8.4×0.02=	1.29×6=
0.8×0.05=	12.6÷0.03=	8.71÷0.1=	21÷0.21=
0.8×0.13=	0.34÷17=	8.08÷0.4=	0.5×2.2=
1.24÷4=	3.27+0.63=	5.02×0.3=	0.3×0.5=
6.4÷4=	7.2÷1.8=	0.7÷0.35=	0.72÷1.44=
0.48÷0.04=	1.25÷2.5=	5.5+55=	16.8÷8=
0.54+2.2=	3.5-0.05=	2÷0.02=	0.25×40=
1.5×0.6=	0.32÷0.8=	12.25÷0.5=	73.5×0.1=
46.5+52.5=	0.45×102=	1.25×88=	2.64+3.85+1.54=
8×1.25=	5.6÷3.5=	4.2÷0.7÷6=	0.4×8.6×25=
0.27÷0.3=	2.5×101=	0.65×101-0.65=	2.6×7÷2.6×7=

比一比，在○里填上“>”“<”或“=”。

（1）716 ×0.25○716÷4	（2）○8.677	（3）5.4 × 0. 9 ○0.9 × 5.4
（4）0. 728÷ 0.9○0.728	（5）○	（6） 2.5 ×2 ×0.2○2.5 ×0.2 ×2
（7）2.5 ×3 ×4○0.5 ×6 ×10	（8）1.3○1.3334	（9）1.2 +1.2 +1.2 ○1.2 ×1.2×1.2

（10）4（2.5 + a ）○4 ×2.5 +4 a

（11）5.6÷0.5○5.6×2

（12）3. 69 × 0.17○3. 69 +0.17

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