试题 试卷
题型:判断题 题类:常考题 难易度:普通
乘法分配律(含用乘法分配律简算) 4917 10
99×64+64
=99×64+64×1
=(99+1)×64
=100×64
=6400
65×64+35×64={#blank#}1{#/blank#}
360÷60= 120÷20= 6×25= 37+68×0=
320+280= 0×560= 81×100= 4+4-4+4=
70×50= 64÷8= 45×40= 25×14-25×10=
240×2= 301×2= 157-59-57= 810÷9÷9=
80×125= 24×5= 7a+5a= 420÷70=
①7.43-(3.48-2.57)
②0.9+9.9+99.9+999.9+9999.9
③15.25-3.1+0.75-4.9
④19×47+82×47-47
⑤125-(29.7+125÷5)
⑥900÷[4×(213-198)]
试题篮