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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
3 5 2
1 5 6 ×
6 × 2 =
12
6 × 50 =
300
6 × 300 =
1800
50 × 2 =
100
50 × 50 =
2500
50 × 300 =
15000
100 × 2 =
200
100 × 50 =
5000
100 × 300 =
+ 30000
54912