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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
9 6 1
5 7 6 ×
6 × 1 = 6
6 × 60 = 3 6 0
6 × 900 = 5 4 0 0
70 × 1 = 7 0
70 × 60 = 4 2 0 0
70 × 900 = 6 3 0 0 0
500 × 1 =
500
500 × 60 =
30000
500 × 900 =
+ 450000
553536