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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
2 3 8
4 8 ×
8 × 8 = 6 4
8 × 30 = 2 4 0
8 × 200 = 1 6 0 0
40 × 8 =
320
40 × 30 =
1200
40 × 200 =
8000
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