浙教版六年级下册25、四则混合运算精品综合训练题
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这是一份浙教版六年级下册25、四则混合运算精品综合训练题,共23页。试卷主要包含了能简算的要简算.,计算,脱式计算,用简便方法计算下列各题,递等式计算,计算下面各题,能简算的要简算,怎样简便怎样算等内容,欢迎下载使用。
(江苏地区真题汇编)小升初四则混合运算(专项训练)-小学数学六年级下册苏教版1.(2022•兴化市)能简算的要简算.(1)( - )÷ (2) ×43 + ×36 + (3) ×( ÷ )(4) ÷[ ×( + )] 2.(2022•淮安区)计算。① ÷15× ②[1﹣( + )]÷ ③ ÷7+ × ④( + ﹣ )×72.⑤ ÷( ﹣ )× ⑥ ×[1÷( + ) 3.(2022•丹阳市)脱式计算。(1)×94(2)×[(+)÷](3)(-)÷(+)(4) 4.(2022•京口区)用简便方法计算下列各题。①21÷0.5÷0.6②125×88③2.5×32×12.5④⑤⑥61×40%+38× +0.4 5.(2022•广陵区)计算下面各题。(能简算的要简算)(1)(2)(3)36÷0.8÷1.25(4) 6.(2022•亭湖区)计算下面各题,能简算的一定要简算。(1)22.7-1.8+17.3-18.2(2)3.2×1.25×0.25(3)1.8× +2.2×25%(4)( + - )×3.27.(2022•宿城区)递等式计算。(1)340÷17+25×80(2)24×( + - )(3)18.1-5.7+1.9-4.3(4)( +4× )÷ 8.(2022•苏州)计算下面各题,能简算的要简算。(1)(7.5+2.5)÷25%×4(2) ×2.15+ ×4.85- (3)11×( - )÷ 9.(2022•锡山区)怎样简便怎样算。(1) ×( - )+ (2) ÷( - × )(3)( + - )×72(4)( -25%)÷ × 10.(2022·连云港)下面各题,能简便计算的用简便方法计算。①1.25×4.9×0.8②③16+(4.5-2.7)÷0.9④⑤⑥ 11.(2022•海门市)脱式计算。(1)375+625÷25(2) ×0.75+0.5× (3)125×32×5(4)5÷ ﹣ ÷5 12.(2022•大丰区)选择合适的方法计算:(1)3.2÷2.5÷4(2)( - )× (3) ﹣( - )(4) × + × 13.(2022•张家港)用简便方法计算。(1)(2)(3)( ) (4) 14.(2022•东台市)仔细算一算,怎样简便就怎样计算。(1) × ﹣ × (2)( + )÷ 15.(2022•徐州)计算下面各题,能简算的要简算。①4×8×125×25②24×( + - )③(7.5-7.5×0.6)÷4④( - )÷( × )⑤1.3×5.45+4.55×1.3⑥ ÷[ ×( - )] 16.(2021•徐州)脱式计算,能简便的用简便方法计算.①21×16÷14+76②9- - ③ ×0.8×12.5④48×( + - )⑤7.6×9.4- +7.6×1.6⑥ ×[ ÷(0.4- )] 17.(2022•溧阳市)简便运算.(1) ×( - )+ (2) ÷( - × )(3)( + - )×36(4)( -25%)÷ × 18.(2021•溧阳市)用你喜欢的方法计算,要写出计算过程。(1)9.96-0.98×4(2)25× ×0.4× (3)88×0.6+12× (4) - ÷ ×0.5 19.(2021·南京)计算下面各题,能简便的就简便算。(1)(2)(3)(4) 20.(2021·无锡)脱式计算,能简算的要简算。(1)148+365÷5(2)5.75+4.17+4.25(3)0.58×62.5%+0.42× (4)( - )×24 21.(2021·徐州)计算①437+399② ×67+33× ③ ÷[ ÷( + )]④46×8-120÷15⑤ +( - )× ⑥(12.5×8-40)÷0.6
答案解析部分1.【答案】(1)( - )÷
=(-)×54
=×54-×54
=3-1
=2(2)×43 + ×36 +
=(43+36+1)×
=80×
=70(3) ×( ÷ )
=××10
=(4) ÷[ ×( + )]
=÷[ ×]
=×50
=2.【答案】①÷15×
=××
=××
=;
②[1-(+)]÷
=[1-(+)]×4
=1×4-×4-×4
=4-1-
=;
③÷7+×
=×+×
=×(+)
=×
=;
④(+-)×72
=×72+×72-×72
=30+8-27
=11;
⑤÷(-)×
=÷×
=××
=;
⑥×[1÷(+)]
=×[1÷]
=×
=。3.【答案】(1)×94
=×(93+1)
=×93+×1
=52+
=52(2)×[(+)÷]
=×[(+)×]
=×(×+×)
=×(+2)
=×+×2
=+
=2(3)(-)÷(+)
=(-)÷(+)
=÷
=×
=(4)×+÷
=×+×
=(+)×
=1×
=4.【答案】①21÷0.5÷0.6
=21÷(0.5×0.6)
=21÷0.3
=70
②125×88
=125×8×11
=1000×11
=11000
③2.5×32×12.5
=(2.5×4)×(8×12.5)
=10×100
=1000
④
=
=32+9-4
=41-4
=37
⑤
=
=
=28
⑥61×40%+38× +0.4
=61×0.4+38×0.4+0.4
=(61+38+1)×0.4
=100×0.4
=405.【答案】(1)8.6×+1.4÷
=(8.6+1.4)×
=10×
=12(2)(+-)×48
=×48+×48-×48
=32+12-28
=16(3)36÷0.8÷1.25
=3.6÷(0.8×1.25)
=3.6÷1
=3.6(4)[1-(+)]÷
=[1-]÷
=÷
=6.【答案】(1)22.7-1.8+17.3-18.2
=22.7+17.3-1.8-18.2
=(22.7+17.3)-(1.8+18.2)
=40-20
=20 (2)3.2×1.25×0.25
= 4×0.8×1.25×0.25
=(4×0.25)×(0.8×1.25)
=1×1
=1(3)1.8× +2.2×25%
=1.8×+2.2×
=(1.8+2.2)×
=4×
=1(4)( + - )×3.2
=×3.2+×3.2-×3.2
=0.8+2-0.2
=2.67.【答案】(1)340÷17+25×80
=20+2000
=2022(2)24×(+-)
=24×+24×-24×=16+4-6
=20-6
=14(3)18.1-5.7+1.9-4.3
=(18.1+1.9)-(5.7+4.3)
=20-10
=10(4)(+4×)÷
=(+)÷
=÷
=8.【答案】(1)(7.5+2.5)÷25%×4
=10÷25%×4
=40×4
=160(2)×2.15+×4.85-
=×(2.15+4.85-1)
=×6
=5(3)11×(-)÷
=11×7×-11×7×
=14-11
=39.【答案】(1)×(-)+
=×-×+
=-1+
=+
=(2)÷(-×)
=÷(-)
=÷
=×
=(3)(+-)×72
=×72+×72-×72
=40+42-44
=82-44
=38(4)(-25%)÷×
=(-)÷×
=÷×
=××
=10.【答案】①1.25×4.9×0.8
=(1.25×0.8)×4.9
=1×4.9
=4.9
②-(+)
=--
=1-
=
③16+(4.5-2.7)÷0.9
=16+1.8÷0.9
=16+2
=18
④+++
=(+)+(+)
=1+
=
⑤÷7+×
=(+)×
=1×
=
⑥÷[(+)×]
=÷[×]
=÷
=11.【答案】(1)375+625÷25 =375+25=400(2)×0.75+0.5×
=0.5×0.75+0.5×0.25
=0.5×(0.75+0.25)
=0.5×1
=0.5(3)125×32×5 =125×(8×4)×5=(125×8)×(4×5)=1000×20=20000(4)5÷ ﹣ ÷5 =8﹣ =7 12.【答案】(1)3.2÷2.5÷4 =3.2÷(2.5×4)=3.2÷10=0.32(2)( - )× = × = (3) ﹣( - ) = ﹣ + = + ﹣ =1﹣ = (4) × + × =( + )× =1× = 13.【答案】(1) =
=5+2.3
=7.3(2)4.85×-3.6+6.15×
=×(4.85+6.15)-3.6
=×11-3.6
=39.6-3.6
=36(3)×23+25÷71+÷23
=++÷23
=++
=(+)+(-)
=1+
=1(4) =
=
=
=7814.【答案】(1) × ﹣ ×
= ×( ﹣ ) = × = (2)( + )÷
= ÷ = 15.【答案】① 4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000;
②24×(+-)
=24×+24×-24×
=4+6-10
=0;
③ (7.5-7.5×0.6)÷4
=[7.5×(1-0.6)]÷4
=[7.5×0.4]÷4
=3÷4
=0.75;
④(-)÷(×)
=÷
=;
⑤ 1.3×5.45+4.55×1.3
=1.3×(5.45+4.55)
=1.3×10
=13;
⑥÷[×(-)]
=÷[×]
=÷
=。16.【答案】①21×16÷14+76 =336÷14+76=24+76=100②9- - =9-( + )=9-54③ ×0.8×12.5= ×(0.8×12.5)= ×10=4④48×( + - )=48× +48× -48× =36+40-28=48⑤7.6×9.4- +7.6×1.6=7.6×9.4﹣7.6+7.6×1.6=7.6×(9.4﹣1+1.6)=7.6×10=76⑥ ×[ ÷(0.4- )]= ×[ ÷0.275]= ×2= 17.【答案】(1)×(-)+
=×+
=+
=(2)÷(-×)
=÷(-)
=÷
=(3)(+-)×36
=×36+×36-×36
=20+21-22
=19(4)(-25%)÷×
=(-)÷×
=××
=18.【答案】(1)9.96-0.98×4
=9.96-3.92
=6.04(2)25××0.4×
=(25×0.4)×(×)
=10×
=1(3)88×0.6+12×
=88×0.6+12×0.6
=(88+12)×0.6
=100×0.6
=60(4)-÷×0.5
=-××
=×(1-×)
=×(1-)
=×
=19.【答案】(1) =
=(3.7+2.3)×
=6×
=5(2) =
=
=(3) =
=
=5+1
=6(4) =
=
=20.【答案】(1)148+365÷5
=148+73
=221(2)5.75+4.17+4.25
=5.75+4.25+4.17
=10+4.17
=14.17(3)0.58×62.5%+0.42×
=0.58×0.625+0.42×0.625
=(0.58+0.42)×0.625
=1×0.625
=0.625(4)( - )×24
=
=22-15
=721.【答案】①437+399
=437+400-1
=837-1
=836 ② ×67+33×
=×(67+33)
=×100
=40③ ÷[ ÷( + )]
= ÷[ ÷]
= ÷
=④46×8-120÷15
=368-8
=360⑤ +( - )×
= + ×- ×
=+×2- ×
=×(1+2-)
=×
=⑥(12.5×8-40)÷0.6
=(100-40)÷0.6
=60÷0.6
=100
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