六年级上册数学补充习题第51到60页答案
数学(mathematics),是研究数量、结构、变化、空间以及信息等概念的一门学科,从某种角度看属于形式科学的一种。
今天学习啦小编要与大家分享的就是:六年级上册数学补充习题第51到60页的答案;具体内容如下,希望能帮助到各位!
六年级上册数学补充习题第51页答案
1: 甲 (705+75+75+45)÷3
=900÷3
=300
乙 300-75=225
丙 225-45=180
2: 薯片 (40-4)÷(5+1)
=36÷6
=6
6+4=10
3: 女 (29+3)÷(1+3)
=32+4
=8
男 8-3=5
六年级上册数学补充习题第52页答案
1: 502+497+501+503+499+496+504
=500×7+2-3+1+3-1-4+4
=3500+2
=3502
2: 汽车
224÷(3+4)
=224÷7
=32
32×4=128
3: 徒弟
360÷(5×2+8)
=360÷18
=20
师傅
20×2=40
10
六年级上册数学补充习题第53页答案
4: ⑴ 大卡车
(25+5×2)÷(2+5)
=35÷7
=5
小汽车
5-2=3
⑵ 小汽车
(25-4)÷(5+2)
=21÷7
=3
大汽车
3+2=5
5: 小宁
(30+2)÷2
=32÷2
=16
小龙
(30-2)÷2
=28÷2
=14
6: 前排
(700+5×20)÷(20+20)
=800÷40
=20
(700-5×20)÷(20+20)
=600÷40
=15
六年级上册数学补充习题第54页答案
1: 3/8 12 1/2
9/20 36 2/3
2/5 1/6 1/100
2: 5/12+2/3×3/4 3÷(5/7-3/14) (28+2/7×7/8)×1/4
=5/12+1/2 =3÷(10/14-3/14) =(28+1/4)×1/4
=5/12+6/12 =3÷1/2 =28×1/4+1/4×1/4
=11/12 =6 =7又1/16
3: (3/5+1/3)×15 7/13×4/5+6/13÷5/4
=3/5×15+1/3×15 = 7/13×4/5+6/13×4/5
=9+5 =4/5×(7/13+6/13)
=14 =4/5×1
=4/5
(7/24-3/16)÷1/8 9/5-(2/5÷1/2+3/7)
= (7/24-3/16)×8 = 9/5-(2/5×2+3/7)
=7/24×8-3/16×8 =9/5-(4/5+3/7)
=7/3-3/2 =9/5-4/5-3/7
=5/6 =4/7
六年级上册数学补充习题第55页答案
4: 15×4/5÷3
=15×4/5×1/3
=4
5: 3/4×1/6×400
=50
6: 3/10÷3/20
=3/10×20/3
=2
2-3/10=17/10
7: 3/2×1/2=3/4
3/4+3/2
=3/4+6/4
=9/4
六年级上册数学补充习题第56页答案
1: 14 2/3 2/11
2: 1/7×6/13+8/13×1/7 1/2÷4/5÷(2/9×3/8)
=1/7×(6/13+8/13) =1/2×5/4×12
= 1/7×14/13 =15/2
=12/13
(5/6-3/4)÷5/12÷9/5 3/7÷[5/7-(3/7+1/5)]
=1/12×12/5×5/9 =3/7÷[5/7-3/7-1/5]
=1/9 =3/7×35/3
=5
3: 男 45×5/9=25
女 45-25=20
六年级上册数学补充习题第57页答案
1: 40×(1-5/8)
=40×3/8
=15
2: 128×(1-5/8)
=128×3/8
=48
3: 120×(1-1/4)
=120×3/4
=90
4: 30×20×(1-7/15)
=30×20×8/15
=320
六年级上册数学补充习题第58页答案
1: ⑴ 12×(1+1/4)
=12×5/4
=15
⑵ 42×(1-2/7)
=42×5/7
=30
2: 30×(1+2/5)
=30×7/5
=42
六年级上册数学补充习题第59页答案
3: 27×(1-1/9)
=27×8/9
=24
4: 350×(1+1/10)
=350×11/10
=385
5: 810×(1-2/9)
=810×7/9
=630
6: 84×(1+3/7)
=84×10/7
=120
六年级上册数学补充习题第60页答案
1: ⑴ 5/8×1/5=1/8
⑵ 5/8×(1-1/5)
=5/8×4/5
=1/2
2: 95×(1-3/5)
=95×2/5
=38
3: ⑴ 48×(1+1/6)
=48×7/6
=56
⑵ 48×(1-5/12)
=48×7/12
=28