Mathematics
Grade10
Easy

Question

Find the product. 34cross times46

  1. 1654
  2. 1594
  3. 1624
  4. 1564

The correct answer is: 1564


    Using the pattern (a + b)(a – b) = a2 – b2,
    34cross times46 = (40 – 6)(40 + 6) = 402 – 62 = 1600 – 36 = 1564

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