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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
1 1 8
1 1 ×
1 × 8 = 8
1 × 10 = 1 0
1 × 100 = 1 0 0
10 × 8 =
80
10 × 10 =
100
10 × 100 =
1000
1298