Front-End Estimation
What should 327 be rounded to using front-end estimation?
About 300
What is the sum of 333 +128
461
What is the sum using rounding? 611 +323
900
Allison has three board games, but gets two new board games for her birthday. How many board games does she have?
3+2=5
Use front-end estimation and then adjust: 427+591
About 1,000
What should 855 be rounded to if using front-end estimation?
About 800
What is the sum of 265 +423
688
What is the sum using rounding? 248+174
400
Ron has 13 yellow apples and 25 red apples. How many apples does he have altogether?
13+25=38
Use front-end estimation and then adjust:309+190+490
About 700
What should 599 be rounded to if using front-end estimation?
About 600
What is the sum of 192 +439
631
What is the sum using rounding? 1,659 +2,205
4,000
Marsha bought 24 eggs. She used 8 for breakfast. How many eggs does she have now?
24-8=16
Use front-end estimation and then adjust:205+925
About 1,100
If you add 52+47 using front end estimation your answer should be___________
About 90
What is the sum of 734 +169
903
Jill bought 2 oranges, 3 apples, and 9 bananas. How many more bananas than oranges did she buy?
9-2=7
Use front-end estimation and then adjust:193+395+999
About 1,600
What should the sum be if adding 61+67 using front end estimation?
About 120
What is the sum of 612 +308
920
What is sum using rounding? 6,647 +5,874
12,000
Mr. Lee is 53 years older then his 8 year old grandson. How old is Mr. Lee?
53+8=61
Use front-end estimation and then adjust: 327+432+27
About 800