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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
1 1 3
2 2 5 ×
5 × 3 =
15
5 × 10 =
50
5 × 100 =
500
20 × 3 =
60
20 × 10 =
200
20 × 100 =
2000
200 × 3 =
600
200 × 10 =
2000
200 × 100 =
+ 20000
25425