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口述计算过程:

1 5. ÷ 3 =. 2 3. ÷ 4 =. 口述计算过程:. ( ) ×( ) 5. 4. 7. ( ) 5. 4 5. ×. =. =. 7. 4 ×. ( ) ×( ) 15. 8. 6. ( ) ( ). 8 15. =. =. ×. 6. 8 ×. 填空:乘法算式转换练习。. 7. 6. 15. 2 5. 1 5. 请你帮帮忙 !. 有一筐苹果,售货员筐从中取出了 ,重 10 千克, 这筐苹果的 重( )千克。说说你是怎样想的。.

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口述计算过程:

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  1. 1 5 ÷3 = 2 3 ÷4 = 口述计算过程:

  2. ( ) ×( ) 5 4 7 ( ) 5 4 5 × = = 7 4 × ( ) ×( ) 15 8 6 ( ) ( ) 8 15 = = × 6 8 × 填空:乘法算式转换练习。 7 6 15

  3. 2 5 1 5 请你帮帮忙! 有一筐苹果,售货员筐从中取出了 ,重10千克, 这筐苹果的 重( )千克。说说你是怎样想的。 5

  4. 1 小时 思考: 小时行使( )千米。 小时行驶(—)千米。 1小时里面有( )个 小时。 8 千米 ?千米 老师家距离学校8千米,骑自行车用了 小时。 老师每小时行多少千米? 2 3 小时 2 3 1 3 1 3 2 3

  5. ( ) ( ) 2 3 6÷ — = 6× —— 11 7 16 39 ( ) ( ) 39 16 8÷ — = 8 ( ) —— × 5 12 5 6 —÷ — =( )× ( ) 5 6 × 12 5 3 14 3 14 7 11 5 8 ( ) ( ) —÷ — = ( )( ) ( ) 4× — = 4× —— 7 6 6 7 ( ) ( ) 1 × 1÷ — = ( )( ) —— 3 2 填空: 5 8

  6. 3 4 2 9 拖拉机—小时耕地—公顷,一小时耕地多少公顷? 2 3 3 10 —吨芝麻可以榨出 —吨油,1吨芝麻可以榨油多少吨? 只列式,但 。 说出列式依据 工作总量÷工作时间 = 工作效率 总出油量÷吨数 = 每吨出油量 提示:画线段图。

  7. 3 5 1 4 15÷ — = 9÷ — = 4 5 12 37 4 5 — — ÷ 1 = — ÷ 1 = 9 2 8 3 27÷ — = 24÷ — = 12 37 — 先口算,然后说一说你发现了什么? 25 36 6 9

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