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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
7 5 2
3 8 ×
8 × 2 = 1 6
8 × 50 = 4 0 0
8 × 700 = 5 6 0 0
30 × 2 =
60
30 × 50 =
1500
30 × 700 =
21000
28576