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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
3 5 4
5 1 2 ×
2 × 4 = 8
2 × 50 = 1 0 0
2 × 300 = 6 0 0
10 × 4 =
40
10 × 50 =
500
10 × 300 =
3000
500 × 4 =
2000
500 × 50 =
25000
500 × 300 =
+ 150000
181248