五年级的解方程练习题

越简单越好!
2025-01-23 03:07:57
推荐回答(5个)
回答1:

简易方程》 五年 班 姓名:

一、省略乘号,写出下面各式。
a×3=( ) 4.5×x=( ) 7×a×b=( ) b×3×a=( )
x×x×2=( ) 3×a+2×b=( ) (a+b)×2= 5×c×d=( )

二、根据运算定律,在横线上填上适当的字母和数。
①a×(b×c)=( × )×c ②(a+8)×b=a× +
③(a+b)+c= =(b+ ) ④a+3.5+b=a+ +3.5
⑤ 3(a+b)=3 +3 ⑥(x+y)×10= × + ×

三、在括号里填上“=”或者“≠”。
7²( )7×7 1.8×1.8( )1.8² x·x=x² m+m( )m²
四、判断
42=4×2 ( ) a×b=ab ( )
7×7=72 ( ) 5+x=5x ( )
a×a=a2 ( ) a×b×3=ab3 ( )
c×2=c2 ( ) b×b读作2b ( )
(1)方程都是等式,但等式不一定是方程。( )

(2)含有未知数的式子叫做方程。 ( )

(3)方程的解和解方程是一回事。 ( )

(4)X2不可能等于2X。 ( )

(5)10=4X-8不是方程。 ( )
(6)等式都是方程。 ( )
(7)方程都是等式。 ( )
(8)X=0是方程5X=5的解。 ( )
(9)9.3-1.3=10-2是等式。 ( )
五、(1)甲数是3.5,比乙数多a,乙数是 ,甲、乙两数的和是 。

(2)用a元买了单价为1.8元的西瓜2千克,应找回 元。

(3)比x少5的数与a相乘的积是 。

(4)a的5倍减去4.8的差是 。

(5)a与b的和的一半是 。

(6)食堂买来a千克大米,吃了b千克,还剩 千克。

(7)买20支钢笔共付c元,每支钢笔的价钱是 元。

(8)一个工地用汽车运土,每辆车运x吨。一天上午运了6车,下午运了5车。这一天共运土( )吨,上午比下午多运土( )吨。

(9)商场上午卖出电视机10台,下午又卖了7台,每台电视机A元。全天共卖电视机一共收入( )元,上午比下午卖电视机少收入( )元。

回答2:

3X+5X=48 14X-8X=12 20X-50=50 28+6X=88 32-22X=10

24-3X=3 99X=100-X X+3=18 X-6=12 56-2X=20

4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8
8x-3x=105 x+5=7 2x+3=10 12x-9x=9 6x+18=48

56x-50x=30 5x=15 78-5x=28 32y-29=3 5x+5=15
23y-23=23 4x-20=0 80y+20=100

53x-90=16 2x+9x=11 12y-12=24

80+5x=100 7x-8=6 65x+35=100

19y+y=40 25-5x=15 79y+y=80

42x+28x=140 3x-1=8 90y-90=90

80y-90=70 78y+2y=160 88-x=80

9-4x=1 20x=40 65y-30=100

回答3:

(1)11X=19-8
(2)5X+9=72
(3)6Q+50=90
(4)2W+92=94
(5)1/3E-42=60-9
(6)2(R+8)=71
(7)1/3(T+3)=18
(8)7(Y-74)=96+Y
(9)10U-50=60
(10)6I-9=12
(11)4P-2P=70-9P
(12)6A-A=50
(13)2S=10-5S+6S
(14)6D-D=90
(15)1/3F-9=74
(16)8G-9=41+5G
(17)5H-4=15
(18)6J-9+6-4+3=11
(19)K-5=88
(20)2L+9-5+5+5=100

回答4:

5x-2x=6

回答5:

24-3X=3 99X=100-X X+3=18 X-6=12 56-2X=20

4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8
8x-3x=105 x+5=7 2x+3=10 12x-9x=9 6x+18=48

56x-50x=30 5x=15 78-5x=28 32y-29=3 5x+5=15
23y-23=23 4x-20=0 80y+20=100

53x-90=16 2x+9x=11 12y-12=24

80+5x=100 7x-8=6 65x+35=100

19y+y=40 25-5x=15 79y+y=80

42x+28x=140 3x-1=8 90y-90=90

80y-90=70 78y+2y=160 88-x=80

9-4x=1 20x=40 65y-30=100

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