Rounding Numbers
Addition
Subtraction
Money
Review (from last test)
100

Round to the nearest 100- 254

200

100
Explain 1 strategy you would use to add 9 + 7 add give the answer
16 Ex. I know that 9 is almost 10 ... adding 10 is easy 10 = 7 is 17 (since 9 is one less than 10 I need to take one away from 17, so I get 16)
100
Find the difference between 67 and 35
32
100

Three thousand four hundred dollars and twenty five cents Write as a dollar number

$3 400.25

100

write is expanded form 123 547

100 000 + 20 000+ 3 000 + 500 + 40 + 7

200

Round to the nearest 1000- 26 712

27 000

200

Jennifer has 1,209 baseball cards. Joel has 987. How many baseball cards do they have altogether?

1 209 + 987 ______ 2 196 baseball cards

200
Anthony and Emily were in a spelling bee. Anthony spelled 29 words correctly. Emily spelled 37 words correctly. How many more words did Emily spell correctly?
8 words
200

What bills and coins would you need to give the cashier if you were paying cash for something that cost $25.56

Answers vary

200

Write in standard form one million two hundred and fifty six

1 000 256

300

Round to the nearest 10- 25 474

25 470

300
Find the sum of 12,340 and 5,973.
18 313
300

Find the difference between 4,120 and 2,009.

2 111

300
Heather goes to the grocery store and spends $3.24 for pizza dough,$2.85 for mozzarella cheese, and $0.89 for a can of pizza sauce. How much did she spend in all?
$6.98
300
What is 23,849 rounded to the nearest hundred. Explain your rounding.
23,800
400

Round to the nearest whole number 4.67

5

400

At the national downhill ski races two race times are recorded below. Find the total race time Race 1 54.76 seconds Race 2 52.54 seconds

The total race time is 107.3

400
At the National Downhill Ski Race two race times are recorded below. How much faster was the second race Race 1 54.76 seconds Race 2 52.54 seconds
The second races was 2.22 seconds faster
400

A cashier at a grocery store tells her customer that his total is $25.89. The customer gives the cashier a $4.00 coupon. How much money does the customer owe the cashier?

$21. 89

400

Order these numbers (Mr. Dhaliwal will write them on the board)

120, 985 121, 012 121, 100

500

Round to the nearest 10th- 5.78

5.8

500
A classroom has four rows of desks. There are eight desks in each row. How many desks are in the classroom?
8 + 8 + 8 + 8 or 4 x 8 = 32
500

Mrs. Campbell was shopping new computer. Store A sells computers for $ 1 291.67, store B sells the same computer for $1 124.86. How much cheaper is store B

$166.81

500

Our classroom needs new pencils. We need to buy 100 pencils. Which store should we buy the pencils from Store A 10 pencils for $1.98 Store B 50 Pencils for $8.25 Store C 20 pencils for $3.12

100 pencils will cost: Store A $ 19.80 Store B $16.50 Store C $ 15 60 i would buy the pencils from store C

500

write this number is standard form, expanded form and in words Mr. Dhaliwal will draw the chart on the board

2, 903, 531

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