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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
1 3 6
1 5 ×
5 × 6 = 3 0
5 × 30 = 1 5 0
5 × 100 = 5 0 0
10 × 6 =
60
10 × 30 =
300
10 × 100 =
1000
2040