5 分数的加法和减法
直接写出得数.
0.42×0.5= 0.51÷1.7= 5.2÷0.13= 99×1.01=
13.5﹣2.8﹣7.2= 32.8+19= 1.06×0.4=
+
=
1﹣
= 25×0.32×125=
直接写出得数.
1.53﹣0.5= 7.8+0.9= 1+
= 12÷0.4=
0.56+4.44= 2,9+3.7+2.1= 4×0.25= 1.25×5×8=
7.6×8+2.4×8=
直接写对又快得数:
0.65÷1.3= 0.32﹣0.23= 586﹣198= 4.38﹣(2.38﹣1.8)=
﹣
=
×
÷
×
= 3.8+12= 4÷
﹣
÷4=
小丽计划三天看完一本书,第一天看了全书的
,第二天看了全书的
①那么第三天小丽应看完全书的几分之几?
②如果小丽第三天实际看了16页,那么第一天看了多少页?
口算.
560+40= 80+112= 900﹣90=
68÷8= 120×4=
=
=
= 0×7=
4×5+32= 7000千克= 吨 14厘米+26厘米= 分米
100分= 时 分.
直接写出下面各题的得数.
576﹣500= 12.7+7= 15×6= 30÷4=
2.8×2= 3.64+4.46= 1÷0.05= 1﹣
=
+
=
=
= 92=
= 20×0.06=
= 164﹣(84﹣60)=
直接写出得数.
370+630= 640×2= 0×803= 15×4= 2000﹣450= 42÷7=
74﹣37= 35÷6=
﹣
=
+
= 1﹣
= 56﹣6×8=
77﹣53= 24+28= 400×8= 3200﹣700=
52+19= 97﹣43= 56÷7= 320+300=
34+56= 600×8= 34+8= 700+900=
45+37= 3000×4= 92﹣6= 47+35=
+
=
﹣
=
+
= 1﹣
=





+
=
×10%= 3.6÷12= 80%×80%=
×4÷
×4= 15÷1%=
﹣
+
+
=
+
=
﹣
=
+
=
+
+
=
+
﹣
﹣
﹣
=
﹣
+
=
﹣
.
=
=
=
=
=
=
=
=
= .
﹣
=
+
=
﹣
+
= 5﹣
=
﹣
﹣
=
+
= 2﹣
=
+
=
﹣
=
﹣
=
+
+
= 1﹣
=
﹣
+
﹣
=
﹣(2
+4
千克倒入第二桶后,两桶油各重
千克,原来两桶油各重多少千克?
+
=
+
=
﹣
=
+
+
= 1﹣
=
﹣
=
﹣
=
+
=
﹣1=
﹣
=
=
+
=
﹣
= 0.7﹣0.62= 12÷25=
=
=
+
×0= 13
×
= 10
=
.
﹣
=
+
=
+
=
+
=
=
﹣
= 3+
=
﹣
=
+
+
=
+3
=
+
=
﹣
=
+
﹣
=
+
+
=
﹣
= 2﹣
= 1﹣
=
+
=
﹣
=
= 18÷36=
+
=1﹣
=
﹣
=
﹣
+
=
+
= 5﹣
=
﹣
÷20%= 24÷(1﹣20%)=
+
=
﹣
+
=
﹣
=
= 0.125×8=
=
= 3.6+6.4= 90÷25÷4=
=
= 43= 1÷0.5=
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