×16= | 12÷ = | × = | 0× + = |
1÷ = | ÷ = | ÷ = | × ÷ × = |
×16=12; | 12÷ =20; | × = ; | 0× + = ; |
1÷ = ; | ÷ = ; | ÷ =1; | × ÷ × = . |
;
;
;
;1;
.分析:按照分数四则运算的计算法则,直接进行口算即可.
点评:此题考查的目的是使学生牢固掌握分数四则混合运算顺序和它们的计算法则,并且能够正确迅速地进行口算,提高口算能力.
编辑:chaxungu时间:2026-04-26 09:46:26分类:小学数学题库
×16= | 12÷ = | × = | 0× + = |
1÷ = | ÷ = | ÷ = | × ÷ × = |
×16=12; | 12÷ =20; | × = ; | 0× + = ; |
1÷ = ; | ÷ = ; | ÷ =1; | × ÷ × = . |
;
;
;
;1;
.