Rounding
Round 254,479 to the nearest hundred thousand
300,000
35,694 + 83,907
119,601
54,306 - 26,527
27,779
In the number 63,672 the value of the 6 in the ten thousands place is _____ times the value of the 6 in the hundreds place.
100
Write an equation to show that 56 is 7 times as much as 8.
56 = 7 x 8
Round 254,479 to the nearest ten thousand
250,000
If a restaurant sells 9,872 meals on Monday, 5,314 meals on Tuesday, and 13,649 meals on Wednesday, how many meals did they sell in all?
28,835 meals
10,000 - 4,572
5,428
What number has the expanded form (7 x 10,000) + (1 x 100) + (9 x 10)?
70,190
Draw a model to represent that 20 is 4 times as much as 5.
20 split into 4 pieces of 5
Round 254,479 to the nearest thousand
254,000
864,103 + 182,987
1,047,090
982,743 - 528,146
454,597
Compare: 15,023 and 1,523
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Anna is 5 years old. Elsa is 3 times as old as Anna. Kristoff is 2 years older than Elsa. How old is Kristoff? Use the Read-Draw-Write method to solve.
Elsa: 5 x 3 = 15
Kristoff 15 + 2 = 17
Kristoff is 17 years old.
254,500
154,852 + 382,617
537,469
Croft has a budget of 100,000 dollars. If they spend 43,792 dollars on curriculum and 52,404 dollars on technology, how much money do they have left? Estimate first and then solve using the Read-Draw-Write method.
Estimate: 44,000 + 52,000 = 96,000 dollars spent, so they have about 4,000 dollars left
Actual: 96,196 dollars spent, so 3, 804 dollars left
Compare: 985,160 and 958,160
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How many centimeters are in:
One meter?
4 meters?
13 meters?
1m = 100cm
4m = 400cm
13m = 1,300cm
Give an example of a situation (a word problem) where you might need to "break" the rounding rules
When you have real-life situations and you need to ensure you will have enough of something, you need to round up to give yourself some extra
A rose garden has 150,000 roses. If 78,942 are red, 23,565 are pink, and the remaining roses are yellow, how many yellow roses are there? Use the Read-Draw-Write method to solve.
78,942 + 23,565 = 102,507
150,000 - 102,507 = 47,493
There are 47,493 yellow roses.
5 km 783 m - 2 km 384 m
3 km 399m
Compare: 400,078 and 407,008
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If Darren weighs 40 kilograms 58 grams and Shawn weighs 33 kilograms 89 grams, how much more does Darren weigh?
Darren weighs 6 kilograms 969 grams more than Shawn.