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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
1 1 4
1 2 ×
2 × 4 = 8
2 × 10 = 2 0
2 × 100 = 2 0 0
10 × 4 =
40
10 × 10 =
100
10 × 100 =
1000
1368