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Place Value
Rounding
Number Form
Comparing Numbers
Estimate and Rounding
100
The value and place of the underlined digit:
53,203
Place: Hundreds place
Value: 200
100
Round 8,354 to the nearest thousand.
8,000
100
Write in standard form:
2,000+300+4
2,304
100
Compare. Write < or >
3,211 ______ 4,211
3,211 < 4,211
100

Use estimation and rounding to choose the appropriate answer for each problem. 

The first bus had 96 passengers and the second bus had 107 passengers. There are about ________ passengers into total.

200

200
The value of the underlined digit:
7,425
Place: Thousands place
Value: 7,000
200
Round 5,465 to the nearest hundred.
5,500
200
Write in expanded form:
4,325
4,000+300+20+5
200
Compare. Write < or >
35,746 ____ 35,476
35,746 > 35,476
200

In the morning, there are about 452 planes taking off from the airport and 127 of the planes are delayed for more than 15 minutes. About ________ planes take off within 15 minutes of the scheduled time.

450-120= 330

500-100= 400

300
The place and the value of the underlined digit:
5,180,246
Place: Ten thousands
Value: 80,000
300
Round 857,836 to the nearest ten thousand.
860,000
300
Write in word form:
12,759
twelve thousand, seven hundred, fifty-nine
300
Compare. Write < or >
125,033 _______ 125,023
125,033 > 125,023
300

The cows on the farm produced 905 liters of fresh milk. The farmer sold 489 liters of milk to his regular customers. There were ________ liters of fresh milk left in the farm.


400 

(900 – 500 = 400)

400
The place and the value of the underlined digit:
9 28,926
Place: Hundred thousands
Value: 900,000
400
Round 345,579 to the nearest hundred.
345,600
400
Write in expanded form:
508,797
500,000+8,000+700+90+7
400
Compare. Write < or >
35,217 _____ 52,107
35,217 < 52,107
400

In a city, there are 45,960 electric cars and 96,113 gas cars. There are about ________ more gas cars than electric cars.

50,000

 (96,000 – 46,000 = 50,000)

500
A number that is ten-thousand more than:
346,563
356,563
500
Round 53,121 to the nearest ten.
53,120
500
Write in standard form:
four hundred eighty-three thousand, six hundred four
483,604
500
Compare. Write < or >
239,345 ____ 987,284
239,345 < 987,284
500

Over a week, a pizza restaurant took 1,570 eat-in orders, 987 take-out orders and 2,560 delivery orders. The number of total orders over the weekend is about ________.

5,100 

(1,600 + 1000 + 2,500 = 5,100)