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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
1 9 5
2 4 5 ×
5 × 5 =
25
5 × 90 =
450
5 × 100 =
500
40 × 5 =
200
40 × 90 =
3600
40 × 100 =
4000
200 × 5 =
1000
200 × 90 =
18000
200 × 100 =
+ 20000
47775