Rounding/Estimating
Round to the nearest hundred: 14,559
14,600
29,014 – 7,503
21,511
The cafeteria tracked pizzas sold for 3 days. Day 1: 70 pizzas. Day 2: 64 pizzas. Day 3: 54 pizzas. How many pizzas were sold in all?
70+64+54=188 pizzas
True or False:
4,990,901 > 4,990,019
True
Write this number in Standard Form:
Seven hundred twenty five thousand, four hundred eighty nine
725,489
Round to the nearest thousand: 14,990
15,000
857,783 – 206,981
650,802
3,912 kids started playing Minecraft last week and 7,322 started this week. How many kids played both weeks?
3,912+7,322 = 11,234
Order these numbers from least to greatest: 99,109, 90,991, 99,191
99,191
99,109
90,991
Write this number in standard form:
800,000 + 30,000 + 4,000 + 400 + 80 +7
834,487
Round to the nearest thousand: 215,501
216,000
39040 - 19941
19,099
The Shute family took a road trip. During the first week, they drove 907 miles. The second week they drove the same amount as the first week plus an additional 297 miles. How many miles did they drive in the second week?
907+297 = 1,204
True or False?
nine hundred eighty thousand four hundred ninety two
> 900,000 + 80,000 + 900 + 40 + 2
False
Write this number in expanded form:
four million eight hundred thousand seven hundred twenty nine
4,800,729
Estimate the answer by rounding:
792,499 + 168,712
792,499 rounds to 800,000
168,712 rounds to 200,000
800,000 + 200,000 = 1,000,000
4,505,341 + 193,841
= 4,699,182
•The basketball team raised a total of $154,694 in September and $29,987 more in October than in September. How much did they raise in October?
154,694+29,987=184,681
Order these numbers from greatest to least:
•32,434, 32,644, 32,654 and 32,534
32,554
32,644
32,534
32,434
Write this number in expanded form:
seven million four hundred eighty nine thousand nine hundred seventy four
7,000,000 + 400,000 + 80,000 + 9,000 + 900 + 70 + 4
Estimate the answer by rounding:
667,499 - 412,999 =
667,499 rounds to 700,000
412,999 rounds to 400,000
700,000 - 400,000 = 300,000
121,636 + 31,580 +499,864
= 653,000
A store sold 14,594 pink tictacs on Valentine’s Day. They sold 7,857 more red tictacs than pink tictacs. How many tictacs did the store sell all together?
Step 1: 14,594 +7,857 = 22,451
Step 2: 14,594 pink + red = 37,045
Order the numbers from greatest to least:
eight hundred seventy thousand twelve
800,000 + 70,000 + 20 + 2
872,922
eight hundred seventy thousand nine hundred ninety two
872,922
870,992
870,012
870,022
Write this number in standard form and expanded form: four million seven hundred ninety two thousand nine hundred forty seven
4,792,947
4,000,000 + 700,000 + 90,000 + 2,000 + 900 + 40 + 7