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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
3 6 1
4 1 ×
1 × 1 =
1
1 × 60 =
60
1 × 300 =
300
40 × 1 =
40
40 × 60 =
2400
40 × 300 =
+ 12000
14801