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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
9 3 7
4 9 0 ×
0 × 7 = 0
0 × 30 = 0
0 × 900 = 0
90 × 7 = 6 3 0
90 × 30 = 2 7 0 0
90 × 900 = 8 1 0 0 0
400 × 7 =
2800
400 × 30 =
12000
400 × 900 =
+ 360000
459130