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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
7 7 8
6 3 ×
3 × 8 = 2 4
3 × 70 = 2 1 0
3 × 700 = 2 1 0 0
60 × 8 =
480
60 × 70 =
4200
60 × 700 =
42000
49014