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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
9 1 3
9 6 2 ×
2 × 3 =
6
2 × 10 =
20
2 × 900 =
1800
60 × 3 =
180
60 × 10 =
600
60 × 900 =
54000
900 × 3 =
2700
900 × 10 =
9000
900 × 900 =
+ 810000
878306