NUMBERS AND OPERATIONS IN BASE 10

PLACE VALUE

100

What is the value of 3 hundreds?

300

200

What is 761 in expanded form?

700 + 60 + 1

300

How do you write four hundred sixty-two in standard form?

462

400

How do you write 230 in word form?

Two hundred thirty

500

Which expression shows 2,047 written in expanded form?

2,000 + 40 + 7

ROUNDING AND ESTIMATING

100

What is 472 rounded to the nearest hundred?

500

200

What is 554 rounded to the nearest ten?

550

300

Which is the best estimate of the sum of 98 and 33, if each number is rounded to the nearest ten?

130

400

Sally had 398 stickers. She gave 87 to her best friend. About how many stickers does Sally have left to the nearest tens place?

310

500

Mr. Roach rounded the number of students at D.E. to the nearest 10. The rounded number is 350. Which number could be the ACTUAL number of students? 

a.) 359    b.) 353    c.) 344    d.) 355

B (353)

ADDITION

100

56 + 87

143

200

698 + 457

1,155

300

Salma made 145 Silly Band bracelets to sell at the craft show. Her friend gave her 129 more bracelets. How many total bracelets does Salma have to sell at the craft show?

274

400

Each week, Sandra earns $225 babysitting and $85 walking dogs. What is the total amount of money Sandra earn in one week?

$310

500

285 + 554 + 235

1,074

SUBTRACTION

100

92 - 46

46

200

What is the difference of 700 - 473?

227

300

Bill had 273 books. After selling some in a garage sale, he had 109 left. How many books did Bill sell?

164 books sold

400

A magazine company had 360 subscribers. If they lost 87 subscribers in January, how many subscribers did they have left?

273 subscribers

500

Sally the seal weighs 446 pounds. Her brother, Bart the seal weighs 707 pounds. How many more pounds does Bart weigh than Sally?

261 more pounds

2-Step Word Problems

300

Aaron has 906 baseball cards. He sells 333 of them. Then, he buys 165 baseball cards. How many baseball cards does Aaron have now?

738 baseball cards

400

Roger has 154 stamps in his collection. He gives 65 stamps to his sister and then collects 46 more. How many stamps does Roger have now?

135 stamps

500

Catherine has 337 magazines for recycling. She recycled 104 magazines on Monday. She recycled 138 on Tuesday. How many magazines does Catherine have left to recycle?

95 left to recycle