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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
3 1 3
2 4 5 ×
5 × 3 = 1 5
5 × 10 = 5 0
5 × 300 = 1 5 0 0
40 × 3 = 1 2 0
40 × 10 = 4 0 0
40 × 300 = 1 2 0 0 0
200 × 3 =
600
200 × 10 =
2000
200 × 300 =
+ 60000
76685