四年级数学解方程随堂练习题
7+x=19x+120=17658+x=90x+150=290
79.4+x=95.52x+55=1297x=63x×9=4.5
4.4x=444x×4.5=90x×5=1006.2x=124
x-6=19x-3.3=8.9x-25.8=95.4x-54.3=100
x-77=275x-77=144x÷7=9x÷4.4=10
x÷78=10.5x÷2.5=100x÷3=33.3x÷2.2=8
9-x=4.573.2-x=52.587-x=2266-x=32.3
77-x=21.999-x=61.93.3÷x=0.3 8.8÷x=4.4
9÷x=0.037÷x=0.00156÷x=539÷x=3
3×(x-4)=46(8+x)÷5=15(x+5)÷3=1615÷(x+0.5)=1.5
12x+8x=4
012x-8x=40 12x+x=26x+0.5x=6x-0.2x=321.3x+x=263X+5X=4814X-8X=12