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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
3 2 5
6 7 3 ×
3 × 5 = 1 5
3 × 20 = 6 0
3 × 300 = 9 0 0
70 × 5 = 3 5 0
70 × 20 = 1 4 0 0
70 × 300 = 2 1 0 0 0
600 × 5 =
3000
600 × 20 =
12000
600 × 300 =
+ 180000
218725