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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
2 6 9
3 1 ×
1 × 9 =
9
1 × 60 =
60
1 × 200 =
200
30 × 9 =
270
30 × 60 =
1800
30 × 200 =
+ 6000
8339