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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
2 4 9
3 3 4 ×
4 × 9 = 3 6
4 × 40 = 1 6 0
4 × 200 = 8 0 0
30 × 9 =
270
30 × 40 =
1200
30 × 200 =
6000
300 × 9 =
2700
300 × 40 =
12000
300 × 200 =
+ 60000
83166