Is it reasonable?
In September Tim used the Internet for 53 hours, in October for 28 hours, in November for 19 hours, and in December for 35 hours. Is it reasonable to say Tim used the internet for 300 hours? Why or why not?
What is.... NOT reasonable. When we round to the nearest ten, Tim used the internet for about 140 hours.
300,000 more than 542,410.
What is 842,410?
Round the number 7,921 to the nearest thousand.
What is 8,000?
Mark has to multiply 213 times 3. He is estimating that the answer will be about 600. Is his estimate reasonable? Why or why not?
What is...YES reasonable. This is reasonable because
200 x 3 is 600.
Estimate the quotient. 52,844 divided by 6.
What is 54,000 divided by 6= 9,000
*6 x 9=54.....54 is close to 52!
Estimate the sum. 2,541 + 6,061 + 1,681
What is 11,000?
3,000 + 6,000 + 2000
Breanna found the easiest way of estimating the quotient for 6,287 divided by 8.
Her estimated equation is 6,300 divided by 8. Is that reasonable? Yes or No and WHY!
What is...NOT reasonable.
Breanna should have found compatible numbers of 6,400 divided by 8.
63 does not go into 8 evenly!
1,805,454 1,795,454 1,785,454
What is Subtract or count back 10,000
Doug carries 48 potato sacks in his truck during each trip to a store. Which of the following is closest to the number of potato sacks he carries in 6 trips?
What is 300?
50 x 6