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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
4 5 3
4 2 ×
2 × 3 = 6
2 × 50 = 1 0 0
2 × 400 = 8 0 0
40 × 3 =
120
40 × 50 =
2000
40 × 400 =
16000
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