36*.42=
I think it means to do the work and then estimate it. But it could also be estimate the divisor and dividend and then do the work after those two numbers are estimated.
The estimate for the product of 289 and 7 is 2,000.
25x80 < 28x87 < 30x90 --> 2000 < 28x87 < 2700?
7178 is a single number, there is no product involved.
ddd
estimated around 5,000
36*.42=
There is no definitive answer for an estimation, so you could come up with something around 35000. The actual product is 35061.....
I think it means to do the work and then estimate it. But it could also be estimate the divisor and dividend and then do the work after those two numbers are estimated.
The estimate for the product of 289 and 7 is 2,000.
25x80 < 28x87 < 30x90 --> 2000 < 28x87 < 2700?
To round to estimate the product of 38 x 2, you first round each number to a more manageable value. In this case, you can round 38 to 40 and 2 to 0. Then, multiply the rounded numbers together to get an estimate of the product. In this case, 40 x 0 = 0. So, the estimated product of 38 x 2 is 0.
YOU CAN estimate it by if your product has more than 5
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?
60 x 50 = 3000