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分数乘除法计算题(专项训练)数学六年级上册苏教版
1.怎样简便就怎样算。
(1)
(2)
(3)
(4)
2.用你喜欢的方法计算,要写出计算过程。
(1)42× ÷
(2) × + ×
(3)( + )÷( + )
3.计算下面各题,怎样简便怎样算。
①
②
③
④
⑤
⑥
4.下面各题,怎么简便怎样算
(1)36×(+)
(2) ÷×
(3)3.3÷+6.7×1.25
(4)[1-(0.75+)]÷
5.选择合适的方法进行计算
①18.6-25.2×
②17×(-)
③÷
④÷×4×35
⑤÷(3--)
6.用合适方法计算下列各题
(1) ××
(2) ÷(÷)
(3) ÷5+×
(4)(+)×5×7
7.计算下面各题,能简算的要简算。
①
②
③
④
8.用你喜欢的方法计算
(1) ×+÷6
(2) ÷÷
(3)()×24
(4)
9.计算下面各题,能简算的要简算。
①
②
③
④
⑤
⑥ ÷[ × ]
10.怎样算简便就怎样算。
① × + ÷6
② + ×
③1- ÷ -
④( + )÷
⑤ ÷
⑥
11.选择合适的方法计算
(1) × ÷
(2)24×( - )
(3) × + ÷12
12.计算下列各题,能简算的要简算。
①24× ÷
②( - )× +
③ × + ÷6
④( + )×24
⑤ ×33+ ×46+
⑥ ÷ ÷
13.能简算的要简算。
①1.25× ×8×
②3.7× +4.3÷
③33×
④ ×51-
⑤ ÷( + )
⑥( - )×27×37
14.计算下面各题(能简算的要简算)
(1)
(2)
(3)
15.用你喜欢的方法计算。
(1) ×4×27
(2) ×
+
×
(3) ×
+
÷6
16.选择合适方法计算下列各题。
(1)
(2)
(3)
17.怎样简便就怎样算。
(1)
(2)
(3)
(4)
18.计算下面各题,能简便运算的要简算
(1) ××
(2) ×+÷5
(3) ÷[0.8×(-)]
(4) ×÷
答案解析部分
1.【答案】(1)解:
=
=
(2)解:
=×(+)
=×1
=
(3)解:
=×(87+1)
=×88
=13
(4)解:
=×3×5+×3×5
=5+6
=11
2.【答案】(1)42×÷
=24÷
=64
(2)×+×
=(+)×
=1×
=
(3)(+)÷(+)
=÷
=
3.【答案】解:①
②
③
④
⑤
⑥
4.【答案】(1)解:36×(+)
=36×+36×
=8+30
=38
(2)解:÷×
=×
=
(3)解:3.3÷+6.7×1.25
=3.3×1.25+6.7×1.25
=(3.3+6.7)×1.25
=10×1.25
=12.5
(4)解:[1-(0.75+)]÷
=[1-]×4
=×4
=
5.【答案】① 18.6-25.2×
=18.6-4.2
=14.4
②17×(-)
=17×-17×
=7-
=
③÷
= ×
=
④÷×4×35
=×4×35
=×35
=441
⑤÷(3--)
=÷
6.【答案】(1)解:××
=×
=
(2)解:÷(÷)
=÷
=
(3)解: ÷5+×
=(+)×
=1×
=
(4)解:(+)×5×7
=×5×7+×5×7
=20+14
=34
7.【答案】解:①
=28×2
=56
②
=×
=
③
=×(+)
=×1
=
④
=36×+36×
=10+27
=37
8.【答案】(1)解: × + ÷6
= × + ×
=( + )×
=
(2)解: ÷ ÷
= × ×
=2
(3)解:( )×24
= ×24+ ×24
=16+4
=20
(4)解:
= ×
=
9.【答案】①×÷0.75
=÷0.75×
=1×
=
②++÷
=++
=1+
=
③×+÷15
=(+)×
=1×
=
④×+×
=+
=
⑤(+)×12×9
=×12×9+×12×9
=45+48
=93
⑥÷[(+)×]
=÷[×]
=÷
=
10.【答案】① × + ÷6
= ×+×
=(+)×
=
②+×
=+
=
③1-÷-
=1--
=1-(+)
=1-1
=0
④(+)÷
=(+)×24
=×24+×24
=16+4
=20
⑤ ÷
=÷(×)
=÷
=
⑥
=÷(×2)
=÷
=
11.【答案】(1)解:×÷
=×
=
(2)解:24×(-)
=24×-24×
=20-18
=2
(3)解:×+÷12
=×+×
=×(+)
=
12.【答案】①24×÷
=24××
=64;
②(-)×+
=(-)×+
=×+
=+
=+
=
=;
③×+÷6
=×+×
=(+)×
=1×
=;
④(+)×24
=×24+×24
=16+4
=20;
⑤×33+×46+
=×(33+46+1)
=×80
=70;
⑥÷÷
=×20×
=16。
13.【答案】①1.25× ×8×
=(1.25×8)× ( × )
=10×
=
②3.7× +4.3÷
=3.7× +4.3×
=(3.7+4.3)×
=8×
=
③33×
=(34-1)×
=34×-
=33-
=32
④ ×51-
=×(51-1)
=×50
=8
⑤ ÷( + )
=÷
=×
=
⑥( - )×27×37
=×27×37-×27×37
=185-135
=50
14.【答案】(1)解:36×(+-)
=36×+36×-36×
=9+6-4
=15-4
=11
(2)解:(27+1)×
=27×+1×
=26+
=
(3)解:[1÷(+)]×
=[1÷]×
=×
=
15.【答案】(1)×4×27
= ×27×4
=12×4
=48
(2) × + ×
=( + ) ×
=1×
=
(3) × + ÷6
= × + ×
=( + )×
=1×
=
16.【答案】(1)×÷×
=÷×
=×
=
(2)÷7+×
=(+)×
=1×
=
(3)20×(-)×
=20××
=1×
=
17.【答案】(1)解:5÷[(-)÷]
=5÷[÷]
=5÷1
=5
(2)解:×+÷3
=×(+)
=×2
=
(3)解:(+-)÷
=×36+×36-×36
=16+30-14
=32
(4)解:×101
=×(100+1)
=×100+
=63+
=
18.【答案】(1)解: × ×
= × ×
=
(2)解: × + ÷5
= × ( + )
= ×1
=
(3)解: ÷[ 0.8×( - )]
= ÷[0.8× ]
= ÷
=20
(4)解: × ÷
= ÷
=
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