8+1-5+1+3-7+2, 3, 5, 2+2+1+-5+8, 7, 8, 8+1-6+2, 6, 5, 5+4-7+2+2+3, 9, 7, 6+2-6+3+4-5+3, 6, 7, 4+3-6+8, 9, 8, 7+2-3-5+4+3-8, 0, 1, 9-4+3-6+3+4-8, 2, 1

Level 1 ++++

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counting 1 -7
counting 1 -7
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寻找匹配项
GAMESHOW Adding with 9, 8, 7
GAMESHOW Adding with 9, 8, 7
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问答游戏
1 - 2 - 3 - 4 - 5
1 - 2 - 3 - 4 - 5
由
随堂测验
Addition 1 - 10
Addition 1 - 10
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寻找匹配项
Mental addition strategy: compensating. Round up numbers like 19 to an 'easy' 20, add it on, then subtract 1 from total.
Mental addition strategy: compensating. Round up numbers like 19 to an 'easy' 20, add it on, then subtract 1 from total.
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匹配游戏
E1 Mental addition: reordering. Tips: add up large nos. first and/or look for pairs that add up to 10.
E1 Mental addition: reordering. Tips: add up large nos. first and/or look for pairs that add up to 10.
由
匹配游戏
🚂-Componi i numeri - 8_livelli
🚂-Componi i numeri - 8_livelli
由
刺破气球
Hit the odd numbers - Level 2
Hit the odd numbers - Level 2
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