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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
6 6 2
2 8 ×
8 × 2 = 1 6
8 × 60 = 4 8 0
8 × 600 = 4 8 0 0
20 × 2 =
40
20 × 60 =
1200
20 × 600 =
12000
18536