试题 试卷
题型:判断题 题类:常考题 难易度:容易
小数乘整数5739 10
3.1×4×0.25=3.1×(4×0.25)运用了乘法交换律
3.75×2.1+7.9×3.75
=3.75×(2.1+7.9)
=3.75×10
=37.5
①65×98
②2.5×24×0.5
③( )×48
④ +[( ﹣ )× ]
12.5×2.7×0.8
2.38×6.3+6.3×7.62
①1.56×1.25×0.8 ②2.5×37.2-36.8×2.5
③21÷3.5+21÷1.5 ④(9.63÷0.9+9.3)×2.5
试题篮