Round to the nearest ten to estimate the sum
Use Front End Estimation to estimate the sum
Whose Sum is About...?
Add it up!
Algebra Expressions and Other Fun Problems!
100
610+323
920
100
584+248
700
100
Which two numbers have a sum of about 800?
445+398 or 498+499
100
365+521=
886
100
There are 35 people at a picnic. There are 3 more children than adults. How many of each are there? ________adults and ________children
16 adults and 19 children Adults- ? Children- adults + 3 adults + children = 35
200
248+174
420
200
560+439
900
200
Which two numbers have a sum that is about 700?
525+110 or 390+289
200
789+123=
912
200
The sum of two numbers is 48. Their difference is 2. What are the numbers? ______ and ________
26 + 22 48 divided by 2 = 24 Go up 2 places for 26 Go down 2 places for 22
300
645+783
720
300
$5.63 + $4.27
$9.00
300
Which two numbers have a sum that is about 300?
187+130 or 291+189
300
4,978+2,234=
7,234
300
My bookshelf has 10 mystery books, 3 fiction books and 13 non fiction books. Write an EXPRESSION that shows how many more non fiction books I have than fiction books.
13-3
400
430+230+642
1,600
400
$3.29+$5.75=
$9.04
400
John's candy store has 1,245 Hershey Kisses. Sal's candy store has 3,162 Hershey Kisses. How many Hershey Kisses do the stores have altogether?
4,407 Hershey Kisses In All
500
368+919+400=
1,687
500
What is the missing number? 234+_________=548
314 234+314=548
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