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4. Using properties of multiplication, find the product ofa. the greatest number of four digits and the smallest number of three digits b. the greatest number of four digits and the greatest number of three digits Fill in the hi |
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Answer» Step-by-step explanation: greatest number of three digits = 999 and smallest number of FIVE digits = 10000 Required product = 999 × 10000 = 9990000 (II) greatest number of four digits = 9999 and the greatest number of three digits = 999 Required product = 9999 × 999 = 9999 × (1000-1) = 9999 × 1000 - 9999 × 1 (using distributivity) = (10000 - 1) × 1000 - (10000 - 1) × 1 = 10000 × 1000 - 1 × 1000 - 10000 + 1] = 10000001 - 11000 = 9989001 |
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