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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
1 1 3
1 4 ×
4 × 3 =
12
4 × 10 =
40
4 × 100 =
400
10 × 3 =
30
10 × 10 =
100
10 × 100 =
+ 1000
1582