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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
1 1 8
3 5 7 ×
7 × 8 = 5 6
7 × 10 = 7 0
7 × 100 = 7 0 0
50 × 8 = 4 0 0
50 × 10 = 5 0 0
50 × 100 = 5 0 0 0
300 × 8 =
2400
300 × 10 =
3000
300 × 100 =
+ 30000
42126