Brainteen
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儿童免费
填出缺少的数
找出每道题里缺少的数。
- 8–12 岁
- 数学
- 学习单
课程标准关联
- Common Core 3.OA.A.4: Find the unknown number in a multiplication or division equation, such as 8 × ? = 48.
- England NC Y3.MA.MD.3: Solve problems, including missing number problems, involving multiplication and division.
- BNCC EF04MA15: Find the unknown number that makes an equality with the four operations true.
许可协议：Crayonbird original
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