算算看再用直式記下來一盒巧克力有9顆8盒共有幾顆巧克力《答案》72顆(本題直式略)詳解:9×872
用直式算算看(1)4-2.7( )(2)16.1-9.4( )《答案》(本題直式略) (1)1.3 (2) 6.7
用直式算算看並驗算215.28÷9驗算:《答案》23.92詳解:驗算23.92×9215.28
算一算並用直式記記看(1)65-4( )(2)53-3( )《答案》(本題直式略)(1)61 (2)50
用直式算算看(1)1-0.2( )(2)7-4.1( )《答案》(1)0.8 (2)2.9(本題直式略)
箱子裡原來有57顆拿走6顆還剩下幾顆算算看再用直式記下來《答案》51顆詳解:57-651
早餐店原有84顆雞蛋用掉23顆後還剩下幾顆雞蛋做做看再用直式記下來《答案》本題直式略61顆詳解:84-2361
用直式算算看(1)1.62.5( )(2)34.8( )《答案》(本題直式略) (1)4.1 (2)7.8