小数口算7、8

口算（7） 2.4+12.5= 3.56-0.3= 5.78-1.06= 13.6-2.7= 76.8-5.9= 36.2-13.6= 25.1+25.7= 35.8+34.9=

63.3+3.83= 34.1-10.9= 36.8-5.2= 45.7-2.4= 57.2+1.8= 32.1-6.7= 25.1-13.6= 0.3+0.5＝

7.9＋2.1＝

0.14×3＝ 8-0.8＝ 1.72－0.2＝ 4.8+0.8＝ 1.55＋0.5＝

4.5-2＝ 10.2-2.9= 1.5－0.5＝ 0.96－0.7＝ 0.8＋0.5＝ 3.16+12.3= 2.4+16.8= 6.2-3.8= 3.7＋2.36＝

0.8－0.2＝ 0.06×8＝ 1.25＋0.8＝ 2.4＋0.06＝ 0.72+0.8＝ 2.35+4.7= 5.3+1.42= 12.3-3.6= 3.67-1.8= 2.47+0.4= 23.6+1.35=

12.5-4.8= 25.7-5.8= 3.6+4.68= 2.3+1.09= 32.4+2.8= 3.6+25.6= 4.7-1.4= 23.5-2.9=

3.5-2.9=

4.9-2.9= 6.8+2.7=

5.5+4.5=

6.4-6=

7.3-0.3=

1.4-1.4= 3.6+3.6= 3.6-1.4= 6.8+

2.45= 4.1-

3.2=

4.9-2.8=

口算（8）

5.9+2.3=

6.8+9=

6+4.8=

6-1.4=

8-0.3=

9-5.8= 23.6-8.9= 23.7+1.9= 4.6+12.9= 4.8-0.9= 4.7+0.6= 20-13.7= 6.2+12.8= 4.7+8= 12-3.6= 4.7+23= 4.6+12.7= 3+56.9= 2-1.9= 8-4.5=

3.9-1.8=

34.8+1.9=

67.2-2.9=

78.1-56.7=

1.02+9.2=

23.5-1.09=

3-1.7=

4.8+0.46=

1.6÷0.8=

7.2÷0.6=

3.9÷3.9=

1.8×0.5=

6.3÷9=

0÷6.81=

2.5÷10=

0.15×8=

4.2÷1.4=

2.6×4=

9.8－8.9=

80÷1.6=

8÷0.5=

0.32÷16=

0.5×1.1=

1.25×4=

6.3÷2.1=

0.92÷4=

6÷1.2=

0.4÷8=

0.56÷14=

0.7×1.2=

0.15×3=

7.5÷0.25=

0.28÷4=

8.2÷0.2=

4×1.6=

9.2÷4=

6×1.2=

46÷2=

16÷4=