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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
2 5 9
2 1 3 ×
3 × 9 = 2 7
3 × 50 = 1 5 0
3 × 200 = 6 0 0
10 × 9 =
90
10 × 50 =
500
10 × 200 =
2000
200 × 9 =
1800
200 × 50 =
10000
200 × 200 =
+ 40000
55167