3+5.8= 3.6+6.4= 0.74-0.34= 0.9-0.25= 5×4= 0.21×3= 0.64÷0.8= 0.48÷——青夏教育精英家教网——

4.3+5.8=______	3.6+6.4=______	0.74-0.34=______	0.9-0.25=______
5×4=______	0.21×3=______	0.64÷0.8=______	0.48÷0.12=______
88÷8=______	1.1×9=______	1÷0.25=______	0÷0.4=______
15÷0.3×0.1=______	0.4÷0.2=______	（0.7+0.8）×3=______	7×1.2+0.8=______
1.8×4-1.2=______	（2.6-1.8）×0.5=______	4+3.2÷0.8=______	0.72÷72-0.1=______
7.5÷2.5-0=______．

速算巧算：

直接写出得数． 0.7+0.3=	7.2+1.8=	0.24+0.76=	9.5-2.5=
1.8-0.3=	1-0.25=	0.47-0.4=	8.83-8=

用坚式计算（前两题要验算）．

直接写出得数 0.28+0.2=	0.5+0.3=	8.7-0.5=	0.88-0.08=
1-0.69=	3.4+5.6=	0.38+5.52=	5-3.4=
0×3.5=	3.86+5.7+5.14=

3×1.16=	0.25×12=	1.2÷4=	1.35×6=	1.68÷0.3=
0.54×101=	6.5-5=	10-0.18-0.12=	5.79+2.63+4.21=	0.64÷1.6×1.7=

直接写出得数． 0.6×0.3=	9.8-4.9=	3.69÷3=	8.72÷0.1=
0.25×9×4=	3÷4=	2.4×5=	5.4x-3x=

直接写出得数 2.1+0.03=	2.1-0.03=	2.1×0.03=	0.5²=
1.5×0.8=	2.1÷0.03=	0.56÷0.7=	1.5×2÷1.5×2=

口算题 0.25×4=	4÷0.01=	3.5+7.5=	（2.5-0.25）×4=
0.96÷0.3=	7.3×0.01=	7.2÷0.12=	12.5×0.7×0.8=

直接写出得数． 8.2+4.08=	1-0.72=
0.4×0.025=	7-0.71-0.29=
8.1÷0.03=	0.24×4=
7.2÷2.4=	0.9÷0.01=

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