Mr. Alvarez said, "Turn to page two hundred sixty-five." What is the page number written in standard form?
265
100
Ivan collects stamps from around the world. The last time he counted, he had 36 stamps in his collection. His uncle just gave him 26 more stamps from Portugal. Ivan's goal is to collect 100 stamps. How many more stamps does he need?
Use an efficient strategy or algorithm to show your work. Write an equation to show how you solved the problem.
100
Justin is solving 37+43. First he added 37+3=40. What does Justin still need to add in order to get the final result?
A.) 40+40
B.) 40+37
C.) 40+7
D.) 40+30
100
Alberta is solving 518-106. First she subtracted 518-100=418. What should she do next to get the final answer?
A.) Subtract 418-6
B.) Subtract 418-18
C.) Add 418+6
D.) Add 418+106
100
Holly's Bakery bakes 478 loaves of break each week. What is that number rounded to the nearest ten?
A.) 470
B.) 480
C.) 490
D.) 500
200
Which number is eight thousand, four hundred thirty-nine?
A.) 840,039
B.) 8,000,439
C.) 8,439
D.) 8,493
200
Cara had 48 marbles in her marble collection. Her grandfather gave her 30 more. On Saturday, Cara went to the store and bought a bag of 36 marbles. How many marbles does she have now?
Use an efficient strategy or algorithm and show your work. Write an equation to show how you solved the problem.
200
What is the missing number?
(___+4) + 2 = 5+(4+2)
A.) 4
B.) 5
C.) 6
D.) 7
200
Florence wants to solve 346-204 by making the numbers easier. She decided to change 204 to 200.
346-200
___-200. Find the missing number so the new problem will give Florence the same answer as 346-204.
A.) 342
B.) 346
C.) 350
D.) 404
200
What is the height of Makushin volcano rounded to the nearest hundred feet? (6,680 feet)
A.) 6,800 feet
B.) 6,700 feet
C.) 6,600 feet
D.) 5,700 feet
300
Write the number 6,513 in words.
Six-thousand, five hundred thirteen
300
Two third-grade classes sold muffins at a school bake sale. Mr. Jackson's class sold 204 muffins, and Ms. Santo's class sold 183. How many more muffins did Mr. Jackson's class sell than Ms. Santo's class?
Use an efficient strategy or algorithm and show your work. Write an equation to show how you solved the problem.
300
The George Washington Carver National Monument covers 210 acres. What number makes the sentence true?
200+___+0=210
A.) 10
B.) 20
C.) 1
D.) 90
300
The third grade class is selling tickets to the school play. They have 70 tickets and have sold 36 tickets. How many more tickets do they still need to sell? Choose the equation that will solve this problem.
A.) 36-70=n
B.) 70+36=n
C.) 36+n=70
D.) n+70=36
300
Which two numbers have a sum of about 220?
A.) 49 and 212
B.) 111 and 108
C.) 92 and 97
D.) 57 and 81
400
Which symbol goes in the blank to make the statement true? 57-20___20+14
A.) <
B.) +
C.) =
D.) >
400
Solve this problem 647+247=___ two ways. Use a different efficient strategy or algorithm for each way. Show your solution.
Show two ways.
400
Fill in the missing addend.
___+20+1=7,021
7,000
400
On Friday, 807 people attended the circus. On Sunday, 629 people attended. How many more people attended the circus on Friday than on Sunday?
Write the equation you would use to find out?
400
Anne estimated each sum by rounding. Which estimate is an underestimate?
A.) 28+48 is about 80
B.) 32+81 is about 110
C.) 237+49 is about 290
D.) 367+276 is about 650
500
Which are equivalent to 126?
A.) 1 hundred, 26 tens
B.) 126 tens
C.) 1 hundred, 2 tens, 6 ones
D.) 1 hundred, 1 ten, 16 ones
500
Solve both problems using a different efficient strategy or algorithm for each problem.
287-115
436-348
287-115
436-348
500
Raul has these four cards. 5, 3, 7, 4. Using two of these cards, what number can Raul make that is closest to 100?
A.) 57
B.) 43
C.) 35
D.) 75
500
Round to the nearest hundred to estimate the difference.
781-428
Estimate=
500
Which two numbers have a difference of about 400?
A.) 741 and 395
B.) 523 and 204
C.) 611 and 285
D.) 516 and 112