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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
3 2 7
5 5 ×
5 × 7 =
35
5 × 20 =
100
5 × 300 =
1500
50 × 7 =
350
50 × 20 =
1000
50 × 300 =
+ 15000
17985