染雾五年级下册数学解方程练习题
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.
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=0.001
