The estimate for the product of 289 and 7 is 2,000.
Year 1638 falls into the 17th Century.
7178 is a single number, there is no product involved.
Ninja
look at the scales
It is: 2*3*3*7*13 = 1638 or as 2*32*7*13 = 1638
2 x 3 x 3 x 7 x 13
1638 1638
The estimate for the product of 289 and 7 is 2,000.
Year 1638 falls into the 17th Century.
The prime factors of 1,638 are: 2 3 7 13As a product of its prime factors: 2*3*3*7*13 = 1638
Answer: 1638 m = 5,374.015 feet.
YOU CAN estimate it by if your product has more than 5
84% of a number equates to 84/100 of that number. 84% of 1638 = 1638 x 84/100 = 1375.92
1638 819,2 273,3,2 91,3,3,2 13,7,3,3,2
when both factors in a multiplication problem are rounded up to estimate the product, the estimate is an overestimate.
Explain how you know whether an estimate of a product is an overestimate or an underestimate?