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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
5 7 3
4 9 ×
9 × 3 = 2 7
9 × 70 = 6 3 0
9 × 500 = 4 5 0 0
40 × 3 =
120
40 × 70 =
2800
40 × 500 =
20000
28077