Addition
Subtraction
Rounding
Number Forms
100

21,698+65,242

86,940

100

 457

-129

____

 332

Is this equation correct? If not fix it.

322

100

Round 244,990 to the nearest ten thousand.

240,000

100
67,921 in expanded form.

60,000+7,000+900+20+1

200

Candy Corner received a large shipment of 25,647 lollipops last month. This month, they received 6,450  more lollipops than last month. How many lollipops did they get this month?


32,097

200

Andy estimates that the answer to 34,921-25,032 will be about 20,000. Is his estimate reasonable?

No.

34,921~35,000 or 30,000

25,023~ 25,000 or 30,000

200

Kaycee was asked to round 33,981 to the nearest thousand. She rounded to 30,000. What did she do wrong? Fix her mistake.

She rounded to the nearest ten thousands.

33,981~34,000

200

Write this number in standard form

thirty nine thousand seven

300
  1. Candy Corner's gummy bear sales for the past two months were 34,567 and 28,943. What is the total number of gummy bears sold in these two months combined?

63,510 gummy bears

300

Sarah estimates that 39,422-12,440 will get her 15,000. Is she correct?

No, she is not.

39,422~40,000

12,440~10,000

300

Joe is helping to organize candy canes for the holiday season. One box contains 16,167 candy canes, and another box has around 29,034 candy canes. Estimate how many candy canes there are in total.

Answers vary.

300

Write this number in expanded form: twelve thousand thirty three

10,000+2,000+30+3

400

Claire estimates that 239,054+40,985 will get her 270,000. Is this a reasonable estimate?

No.


239,054~240,000

40,985~40,000

400

The Candy Shop owner ordered 56,789 jelly beans for a special event. Unfortunately, 2,345 jelly beans were damaged during shipping. How many usable jelly beans did the shop receive?

54,444 jelly beans

400

Round 568,987 to the nearest ten thousand.

570,000

400

Convert this number to standard form: 500,000+7,000+800+20+9

507,829

500

909,347+43,988

953,335

500

200,083 - 45,195

154,888

500

The penguin show at the Minnesota Zoo usually attracts around 37,900 spectators. Today, the zoo staff noticed the seats weren't as full and estimated there were about 9,456 empty seats. Approximately how many people attended the penguin show?

Answers vary depending on rounding.

500

Write this number in word form: 132,405

One hundred thirty two thousand, four hundred five

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