Brainteen
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儿童免费
混合运算
算出得数。
- 8–12 岁
- 数学
- 学习单
课程标准关联
- Common Core 3.OA.C.7: Multiply and divide fluently within 100 and know all products of two one-digit numbers from memory by the end of Grade 3.
- Common Core 3.NBT.A.2: Add and subtract fluently within 1000 using place value and properties of operations.
- England NC Y3.MA.ASN.1: Add and subtract numbers mentally, including a three-digit number and ones, tens or hundreds.
- England NC Y4.MA.MD.1: Recall multiplication and division facts for times tables up to 12 × 12.
- Programmes FR C3.MA.NC.2: Calculate mentally and in writing with whole numbers and decimals.
许可协议：Crayonbird original
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