0
Once can roughly round to tens if the numbers are less than 1000, or to hundreds if the numbers are less than 10000, etc., trying to make up for large round-off errors which occur when the number are close to 1/2 the round-off amount.
E.G Add: 13+ 57+ 49 + 45 + 78 + 105
Add 10 + 60 +50 + 50 + 80 + 100
Still curious? Ask our experts.
Chat with our AI personalities
MaxineI respect you enough to keep it real.
Chat with Maxine
ProfessorI will give you the most educated answer.
Chat with Professor
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with JordanAdd your answer:
Earn +20 ptsQ: How do you estimate sums and differences?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
How do yo round to estimate sums and differences in math?
One way is to do front end estimation!
Estimating sums and differences?
xxx=2x
The thing combines multiplication with sums and differences?
distributive property
What does reasonable mean in the terms of maths?
To give a reason to something,(numbers, sums, differences, or problems you usle hear the word reasonablein a map scale problem like me
How is the mean calculated?
Add all the sums, then divide by the number of sums. (ie. the average.)
Trending Questions
How pronounce via?
What is 2 places after the decimal?
How do you write 0.812 as a fraction?
What shape as 0 vertices 2 edges 3 faces?
The incenter of a triangle is the center of the only circle that can be inscribed in it?
How do you determine that the triangle is a right triangle?
What times 4 equals 27?
How many times does 200 go into 1000?
What does p value 1 means?
Why are the two triangles congruent?
What is rosylns monthly payment Roslyn has decided to purchase a 14000 car. She plans on putting 2000 down toward the purchase and financing the rest at a 6 interest rate for 4 years?
What is the name for a figure formed by two rays with the same endpoint?
How many square meters in a 8 linear meter fence?
What is the outside measurement of a 60 inch round table?
How many times does a piston go up to complete the four stroke cycle?
What is the fraction form for 0.2083333333?
How many hours is 149 miles?
What two numbers multiply into -18 and add to 3?
Is the value of a 1921 Morgan silver dollar more valuable than just the melting price?
What does the expression angel of the house mean?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.