5 分数的加法和减法
直接写出得数.
5.7+11.8+4.3= 2
﹣
+
= (
+
)×24= 0.32﹣0.22=
33×98+66= 10.1×99﹣9.9= 4
﹣(
+0.5)= :
=
8×12.5%=
=
直接写出得数
①1﹣0.375= ②48×12.5%= ③
+
= ④8×99=
⑤1.9﹣0.3×3= ⑥19+99= ⑦15﹣15×
= ⑧
﹣
=
⑨5÷
﹣
÷5= ⑩(
﹣
)×18=
口算题.
0.125×16= 3﹣1.06= 0.6÷6= 16.8﹣7=
11﹣
=
﹣
= 1.01×0.2×0.1= 0.45×0=
0÷125= 9
﹣9.875= 2
﹣0= 0.1+0.2×0.3=
+
÷
+
=
÷3+
×
=
直接写出得数:
432﹣98= ; 0.8×2.5= ; 6.4+0.36= ; 4.5÷15= ;
+
=
×
=
÷2= ;
﹣
= ; 2.4×5= ; 0.72×
= ;
4.5﹣2.8﹣0.7= ;
×9÷
×9= .
口算
6×0.03= 1÷0.25= 8÷1.6=
1﹣0.3×0.6= 43÷0.01= 300×0.04=
14﹣1.4= 1.3×0.5= 0.42÷0.6=
7﹣1.4= 12﹣1.2= 2.5+2.5×3=
9÷0.01= 43÷0.1= 8.4÷4=
3.9﹣3.9÷3=
+
= 2﹣
=
﹣
=
+
+
=
口算.
46+34= 72﹣28= 800×5= 5000+200=
32×2= 96÷3= 80÷4= 7700﹣700=
64÷2= 27+45= 85﹣78= 1400﹣600=
+
=
﹣
=
+
=
﹣
=
我能算得又对又快.
24+6= 3000+500= 400﹣105= 300﹣30= 75﹣50=
92﹣6= 800×6= 120×5= 900×2= 8×9+8=
= 1﹣
=
= 48÷5=( )…( ) 50÷6=( )…( )
直接写出得数.
60×5= 700×6= 56÷7= 34+8= 92﹣6= 300×4=
350+200= 48÷8= 4×5+50=
﹣
= 1﹣
=
+
=
直接写得数
23×10= 70×3= 84÷4= 0+8=
0×9= 80×7= 67+5= 6×600=
57+39= 56÷7= 21﹣7= 24×3=
+
=
﹣
= 1﹣
=
+
=
直接写得数.
27÷3= 75×4= 800﹣190= 62÷9= 25×60= 800÷4=
540+90= 102×4= 500×4= 600﹣60=
+
=
﹣
=
直接写出得数
75+38+25= 0÷23+23= 298×71≈
350×40= 807﹣ =96 378÷62≈
90﹣80÷10= 64+36÷3=
+
+ =1.
直接写出得数.
500×7= 0×900= 72÷9= 34÷8=
6分= 秒 2300千克﹣300千克= 吨 5千米﹣3千米= 1吨﹣300千克= 千克
﹣
=
+
=
+
= 1﹣
= .





=
=
=
=
=
=
=
= 1÷
=
)= 9.8÷0.7=
×9÷
×0= 1.5+0.1=
+
= 40÷50×100%=
= (
÷
)÷
=
+
÷
+
)×24=
+
=
﹣
﹣
=
÷
=
÷
﹣
﹣
=
=
=
=
=
=
= 1÷0.25=
﹣
=
=
+
=
﹣
=
﹣
= 1.3×7+6.7×7=
×5=
=
×
= 3÷
÷0.5=
=
=
﹣
=
=
=
﹣
﹣
(2)7.8×1.17﹣7.8×0.17 (3)10﹣
﹣
+
﹣
+
(5)0.25+
+
+
(6)
+
+
.
= 1﹣
=
=
﹣
=
﹣
=
+
=
+
=
+
=
﹣
=
+
=
+
=
×
= 1+25%= 1÷
÷
=
﹣
=
=
+
=
+
=
﹣
+
=
﹣
=
奖给第一组,又用其中的
奖给第二组,其余的奖给第三组,第三组得花占到的红总数的几分之几?
﹣
+
(2)
+(
﹣
) (3)1﹣[
﹣(
+
)]
+
+
+
(5)35﹣
﹣
(6)
+
﹣
里减去1
与
的和,差是多少?
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=
=
=
=
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=
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