Math Boot Camp 0019-001
English ed. / Amazon Kindle / 1-digit plus 1-digit addition without regrouping + 1-digit minus 1-digit subtraction without regrouping + 1-digit by 1-digit multiplication

[Stage 5]

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 ①: ( 6.8 sec. )

 ②: ( 5.8 sec. )

 ③: ( 5.6 sec. )

 ④: ( 6.5 sec. )

 ⑤: ( 6.5 sec. )

 ⑥: ( 7.0 sec. )

 ⑦: ( 6.2 sec. )

 ⑧: ( 4.7 sec. )

 ⑨: ( 6.6 sec. )

 ⑩: ( 6.5 sec. )

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Math Boot Camp 0019-002
English ed. / Amazon Kindle / 1-digit plus 1-digit addition without regrouping + 1-digit minus 1-digit subtraction without regrouping + 1-digit by 1-digit multiplication

[Stage 5]

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 ①: ( 8.4 sec. )

 ②: ( 8.3 sec. )

 ③: ( 8.1 sec. )

 ④: ( 8.4 sec. )

 ⑤: ( 8.7 sec. )

 ⑥: ( 8.8 sec. )

 ⑦: ( 8.5 sec. )

 ⑧: ( 9.2 sec. )

 ⑨: ( 8.5 sec. )

 ⑩: ( 7.2 sec. )

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