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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
3 5 8
3 9 3 ×
3 × 8 = 2 4
3 × 50 = 1 5 0
3 × 300 = 9 0 0
90 × 8 = 7 2 0
90 × 50 = 4 5 0 0
90 × 300 = 2 7 0 0 0
300 × 8 =
2400
300 × 50 =
15000
300 × 300 =
+ 90000
140694