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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
1 4 3
3 2 5 ×
5 × 3 =
15
5 × 40 =
200
5 × 100 =
500
20 × 3 =
60
20 × 40 =
800
20 × 100 =
2000
300 × 3 =
900
300 × 40 =
12000
300 × 100 =
+ 30000
46475