# 3rd gr math

posted by .

tyrell says \$750 is about \$800. Sara says \$750 is about \$700. Who is correct? Explain? Its number sense.

• 3rd gr math -

http://www.jiskha.com/display.cgi?id=1285625959

• 3rd gr math -

\$750 rounds up to \$800 because 5 rounds up to 10 and 15 rounds to 20 and 50 to 100
so 750 breaks into 700 and 50
50 rounds up to 100 + the 700=\$800

## Similar Questions

1. ### math

Sara says the number with the most digits is always greatest. Do you agree?
2. ### Precalculus

"An aquarium with length x, width x-10, and height x-5 holds about 750 cubic feet of water. Find all real solutions of the equation (I wrote it) 750 = x(x-10)(x-5)." I got the volume equation correct, right?
3. ### math

Tyrell says \$750 is about \$800.Sara says \$750 is about \$700.who is correct?
4. ### math

tyrell says \$750 is about \$800. sara says \$750 is about \$700. who is correct?
5. ### 3rd math

Jake says adding 0 does not change a number. Is he correct?
6. ### Math

The following data represent what 18 people said when they were asked to estimate the crowd at a public gathering: 325 450 500 500 550 575 575 600 600 650 650 700 700 700 725 750 800 900 State the mean, mode, median Mean: 325+450+500+500+550+575+575+600+ …
7. ### trig

find the exact values of the six trig functions of the angle. -750 sin(-750)= cos(-750)= tan(-750)= csc(-750)= sec(-750)= cot(-750)= I've tried this question over and over again and i cannot get it right. i believe -750 is in the fourth …