5 分数的加法和减法
直接写出得数
0.7+1.23= 3﹣1.45= 140×5=
=
70÷1000= (49﹣49)÷25= (4×7)×25= 40×50=
72+72×9= 216+199= 4.6﹣0.7﹣2.3= 3.7+1.2﹣3.7+1.2=
直接写出得数.
25﹣0.7= 10+1.1= 2.3+5.745﹣1.3= 7×0÷7=
10+1.2÷10+1.2= 2元5分+3角5分= 5吨﹣5千克= 15+
=
﹣0.63=
+
= 1﹣
= 2.5÷100=
口算,在题目后面直接写出得数.
0.9﹣0.1= 30×4= 20+38=
63﹣7= 804+4= 2008﹣208=
5×101= 46+153= 16×11=
10.7+0.3= 918÷8= 8﹣0.2=
1.40+2.20= 1500÷5= 63﹣36=
17×50=
=
+
=
1﹣
=
+
=
直接写出得数
8×1.25= 10﹣2.8﹣5.2= 1﹣
=
﹣
=
25×11= 0.07×100= 2.1﹣1.9= 0.27×10=
+
= 1﹣
﹣
=
+
=
+
=
直接写得数.
0.1÷0.01=
+3.25= 11﹣
= 9.5+0.15=
﹣
=
(0.18+
)÷9= 4.5÷
+
×0= 1.25×3.2×25=
×
÷
×15=
×
÷
×
=
=
=
﹣
+
=
=
=
=
+
)= 15÷
×
×8+8×
=
+
= 2÷9+
=
×
=
+
)= 6.3÷0.01= 1﹣58%=
=
﹣
=
+
=
+
=
=
= 4.5m﹣3.2m=
+
=
﹣
=
+
﹣
=
=
+1
=
+
=
﹣
= 1﹣
= 1﹣
+
= 1.27+1.73=
﹣
=
= 9+5÷5+9= 6.3×0.5= 40×0.25=
+
= 1﹣
=
﹣
+
.
+
=
﹣
﹣
=
═
═
═
═
+
= 1﹣
=
﹣
=
+
= 0.5×1.2= 3÷
=
=
= 12×
=
=
=
+
= (
)﹣
=
+
=
﹣
=
+
= 10.8﹣3.9﹣4.1=
+
=
+
=
+
+
=
+
+
=
﹣
=
+
= 7÷50=
+7= 15.42﹣6.3=
+
=
﹣
=
+
=
+
=
﹣
=
﹣
= 2.54+4.6=
+
= 8.2﹣5.6=
+
=
+
=
+
+
+
﹣(
﹣
)
+
0.25×8
+
+
.
﹣
+
2.5×[(3.2+1.8)÷0.25] 6.4×0.09+0.01×6.4.
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