Question

#1 Round to the nearest half dollar. $14.17 - $9.95 =

a) $14 – $9 = $5

b) $14 – $10 = $4

c) $15 – $9 = $6

d) $15 – $10 = $5

#2 Use front-end estimation. 4.25 + 9.64 =


a) 4 + 9 = 13

b) 4 + 10 = 14

c) 5 + 9 =14

d) 5 + 10 = 15

Please help me with these two questions (just say which choice it is) Thanks! xx

Answer 1

Saying which choice it is won't really be helping you...

Answer 2

Ya but..if i find out which one it is i can try to learn how it became that answer...duh.

Answer 3

Nope.

What is 14.17 - 9.95?

Answer 4

I thought it would be b)

Answer 5

Simple math. 14.17 - 9.95. No calculator needed.

Answer 6

Forget about the options.

Answer 7

when we estimate to the nearest half, does that mean the number on the right side of the decimal number?

Answer 8

No. The closest. Can be left or right.

Answer 9

Ok, so 14 stays the same because the number on the right is less than 5. while 9 is added to 1 because the number on the right is greater than 5. So it becomes, 14 - 10

Answer 10

Yup

Answer 11

and so the final answer is, 4.

Answer 12

Yup. So b it is.

The 2nd one should be easier as you round down only.

Answer 13

It is called "Chopping" in numerical methods.

Answer 14

So all we do is add the two whole numbers, right?

Answer 15

Yup.

Answer 16

Ok, so its 4 + 9 which equals 13

Answer 17

There you go.

Answer 18

Thanks for the support! I wont forget the rules of what you have to do this time aha :)

Answer 19

Haha! Pleasure!

Answer 20

and Thanks!

Answer 21

no problem. :)