480道五年级口算题啊,切记一定要答案口算题 像42+39=81这样的
问题描述:
480道五年级口算题啊,切记一定要答案
口算题 像42+39=81这样的
答
(1)2x+8=16
(2)x/5=10
(3)x+7x=8
(4)9x-3x=6
(5)6x-8=4
(6)5x+x=9
(7)x-8=6x
(8)4/5x=20
(9)2x-6=12
(10)7x+7=14
(11)6x-6=0
(12)5x+6=11
(13)2x-8=10
(14)1/2x-8=4
(15)x-5/6=7
(16)3x+7=28
(17)3x-7=26
(18)9x-x=16
(19)24x+x=50
(20)6/7x-8=4
(30)3x-8=30
(31)6x+6=12
(32)3x-3=1
(33)5x-3x=4
(34)2x+16=19
(35)5x+8=19
(36)14-6x=8
(37)15+6x=27
(38)5-8x=4
(39)7x+8=15
(40)9-2x=1
(41)4+5x=9
(42)10-x=8
(43)8x+9=17
(44)9+6x=14
(45)x+9x=4+7
(46)2x+9=17
(47)8-4x=6
(48)6x-7=12
答
1 50 题3.4-1.4= 2 7.82-7.2= 0.62 2.19+9.1= 11.2910.1-0.89= 9.210.68+0.42= 1.1 8.1-5.1= 30.728-0.24= 0.968 0.8+0.18= 0.98 0.89-0.25= 0.641-0.98= 0.02 0.048+0.52= 0.568 5×400= 200019.9+11.1=...