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Multiplying: 3 digit numbers with hints [3]

Multiplying: 3 digit numbers with hints [3]

 
 
637
432 ×
2 × 7 =
14
2 × 30 =
60
2 × 600 =
1200
30 × 7 =
210
30 × 30 =
900
30 × 600 =
18000
400 × 7 =
2800
400 × 30 =
12000
400 × 600 =
+ 240000
275184