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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
3 1 4
5 9 ×
9 × 4 = 3 6
9 × 10 = 9 0
9 × 300 = 2 7 0 0
50 × 4 =
200
50 × 10 =
500
50 × 300 =
15000
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