Estimation
Addition
Subtraction
Word Problems
Real Recognize Real
100
Round to the nearest ten:
52 rounds to ______
77 rounds to _________
50
80
100
Decompose the numbers (expanded form)
15,114 + 412=
10,000+5,000+100+10+4
400+10+2
100
What are the decomposed place values for 5,261?
thousands + hundreds + tens + ones
5,000+ 200+60+1
100
Derrick Henry wants to set a new record for rushing yards. He currently has 631 rushing yards. He only has 2 months to complete this record. He needs at least 1,277 yards. How many more rushing yards does he need?
646 more yards
100
What's the saying when rounding a number?
5 and above give it a shove, 4 and below let it go
200
Round to the nearest hundred
677 rounds to ______
607 rounds to_______
700
600
200
Use partial sums to find a sum. (PUT IT IN expanded form then add)
What are the correct partial sums for each addend?
2,497+4,402
Answer: 6,899
Work needed:
1. 2,000+400+90+7
2. 4,000+400+2
6,000+800+90+9= 6,899
200
Look at the problem.
What is the difference? Enter the answer.
12,131
200
Lamar Jackson threw 54,322 stream passes. To make MVP he needs to throw 355,103 passes. How many more passes does need to make?
He needs to throw 300,781 more passes
200
What is regrouping? Specifically say the saying when tens are involved.
Add a ten, take a ten and etc.
300
Round to the nearest thousand
996 rounds to ______
2,013 rounds to ______
4,895 rounds to _______
1,000
2,000
5,000
300
Look at the problem. Regroup if needed
123,033
(Must show regrouping work)
300
Look at the problem.
What is the difference? Enter the answer.
16,665
Show your work
300
Mary had 900 sunflowers. A tornado destroyed 893 sunflowers. She wants to have 1,200 sunflowers. How many more sunflowers does she need to grow?
1193 more sunflowers
300
What is another word for a representation?
A picture, diagram, graph
400
How can you estimate the sum?
5,678 + 9,245 =
Answer: 15,000
14,923 MUST be rounded to the final answer
400
Look at the problem.
Look at the problem.
What is the sum? Enter the answer.
1. 31,284
2. 47,889
400
Look at the problem.
What is the difference? Enter the answer.
8,008
400
The Valentine Hotel is preparing its pools for the summer. Pool A holds 11,842 gallons of water. Pool B holds 17,963 gallons of water. The hotel currently has 25,672 gallons of treated water ready to fill the pools. How much more water will they need to fill both pools?
The Valentine Hotel needs more gallons of water to fill both pools.
4,133 more gallons of water
400
What is a variable?
What does the variable represent?
What symbol(s) can represent a variable?
A variable represents an unknown quantity. Letters are typically used in place of this unknown quantity.
500
Enter the answer.
How can you estimate the difference?
11,526−3,780=
Answer: 8,000
Must be rounded from 7,746
500
Lakeside High School East has 4,703 students. Lakeside High School West has 3,559 students. How many students do both schools have altogether?
8,262 students altogether
500
Enter the answer.
On the first night of a concert 45,238 tickets were sold. On the second night 42,645 tickets were sold. How many more tickets were sold on the first night?
There were more tickets sold on the first night.
2,593 more tickets were sold on the first night
500
The Valentine Hotel had 8,348 guests last spring and 15,436 guests last summer. It wants to have 28,000 guests this spring and summer. How many more guests than last year does the hotel need this year to reach its goal?
The Valentine Hotel needs more guests than it had last spring and summer to reach its goal.
4,216 more guests are needed to reach the goal
(students must show their work)
500
Who is one of Ms. Jefferson's favorite singers?
What number jersey (or what player's jersey) does Ms. Jefferson wear every purple Friday for the Ravens?
Usher Raymond
#44, Marlon Humphrey (raven's cornerback)