Question

Estimate by first rounding each number to the nearest 1/2

-4 1/6*(-1 14/15

A. -12


B. -8


C. 8


D. 12

Answer 1

@iGreen

Answer 2

-4 1/6*(-1 14/15)
-25/6*(-29/15)=5/6*29/3=145/18 = 8.1

Answer 3

Estimate by \(first\ rounding\) each number to the nearest 1/2
-4 1/6 => -4
-1 14/15 => -2
What is -4\(\times\)(-2) ?

Answer 4

is the answer is 8

Answer 5

@mathmate

Answer 6

That is correct. Remember that 8 is an estimate of the product, not the exact answer, because we approximated the multiplicands to the nearest half as instructed.

Answer 7

Thank you. Could you plz help me with a few more.

Answer 8

@mathmate

Answer 9

You're welcome!
Unfortunately I have to attend to something else in the next few hours.
Post your questions, and if they are not answered, I will pick them up when I return.

Answer 10

i only have 5 question all together and i am on 3

Answer 11

Amit wants to estimate 1 1/9+3 6/7 . To estimate, he simplifies the expression 1+4 .



Is Amit’s estimate a close estimate, an underestimate, or an overestimate?



A.


underestimate


B.


overestimate


C.


close estimate

Answer 12

@party_girl @iGreen. @iGreen

Answer 13

@KatnissMallark

Answer 14

i think close estimate

Answer 15

@BethLM39

Answer 16

I'd agree

Answer 17

A trail is 3 2/10 km long. Cassidy has run 9/10 of the distance of the trail.



About how far has Cassidy run?



Estimate by first rounding each number to the nearest 1/2 .



A. 2km




B. 3km




C. 4km




D. 7km

Answer 18

Round 3 2/10 and 9/10 to the nearest half

Answer 19

I do not know how

Answer 20

@KatnissMallark @iGreen.

Answer 21

3 or 3 1/2. Which is closer to 3 2/10?

Answer 22

i think a

Answer 23

Rounding to half is done as follows:
1. multiply the number by two.
2. round to the nearest integer.
3. Divide the result by two.
Example: round 5 1/3 to the nearest half
1. 5 1/3 *2 = 10 2/3
2. nearest integer is 11
3. divide by two to get 5 1/2

Answer 24

a?

Answer 25

A trail is 3 2/10 km long. Cassidy has run 9/10 of the distance of the trail.
Round 3 2/10 to nearest half: multiply by 2=6 4/10, round to nearest integer = 6 now divide by two to give 3.
For 9/10, round to nearest half: multiply by 2 = 18/10 round to nearest integer to give 2, then divide by two to give 1.
Now multiply the two results!