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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
9 7 6
5 5 3 ×
3 × 6 = 1 8
3 × 70 = 2 1 0
3 × 900 = 2 7 0 0
50 × 6 = 3 0 0
50 × 70 = 3 5 0 0
50 × 900 = 4 5 0 0 0
500 × 6 =
3000
500 × 70 =
35000
500 × 900 =
+ 450000
539728