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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
2 4 4
2 4 2 ×
2 × 4 = 8
2 × 40 = 8 0
2 × 200 = 4 0 0
40 × 4 = 1 6 0
40 × 40 = 1 6 0 0
40 × 200 = 8 0 0 0
200 × 4 =
800
200 × 40 =
8000
200 × 200 =
+ 40000
59048