Place Value & Rounding
What number has a 5 in the tens place?
A) 1,540 B) 1,550
C) 5,540 D) 1,505
B) 1,550
On Monday 197 students ate hot lunch at school. On Tuesday only 45 students ate hot lunch. How many students ate hot lunch on those two days combined?
242
Ms. Robinson is about 157 centimeters tall. Ms. Cook is about 172 centimeters tall. How much taller is Ms. Cook than Ms. Robinson.
15
Grace was asked to round 3,478 to the nearest hundred. She answered 3,480. What mistake did she make?
She rounded 3,478 to the nearest ten not hundred. The correct answer is 3,500.
How many exchanges do we need to make to solve?
654 - 347
A) 0 B) 1 C) 2 D) Can not be solved
Explain
B) 1
When you round 2,677 to the nearest hundred you get?
2,700
Can the sum of 2,567 and 2,123 be any of these answers? Defend our answer.
A) 3,850 B) 2,989 C) 4,099
No
Daisy has read 500 pages in ELA this year so far. Ryann has read 348 pages this year. How many more pages does Ryann need to read to catch up with Daisy?
152
There were 4,876 ants in ant house A. There were 4,678 ants in ant house B. Penny wrote
Ant House A < Ant House B
How do you know she is incorrect?
A has 8 in hundreds place
B has 6 in hundreds place
4,876 is greater than 4,678
How many exchanges do we need to make to solve?
280 - 290
A) 0 B) 1 C) 2 D) Can not be solved
Explain
D) Can not be solved
Chris owns 289 Pokemon cards. Matt owns 512 Pokemon cards. About how many more cards does Matt have than Chris?
Matt has about 200 more Pokemon cards than Chris.
Kylee makes $95 a day selling cupcakes. Sometimes she works 8 hours a day. How much money does she make in three days?
$285
Can the difference of these two numbers, 7,065 - 5,915 be any of the answers below? Defend your answer.
A) 12,980 B) 1,150 C) 2,152
Yes
B)1,150
What went wrong in this addition problem?
4,922
+ 3,091
_______
7,913
Forgot to transfer ten from the tens place to the hundreds place and 10 more from the tens place to the hundreds place.
How many exchanges do we need to make to solve?
802 - 299 =
A) 0 B) 1 C) 2 D) Can not be solved
Explain
C) 2
True or False:
9,501 rounded to the nearest thousand is 9,000
Justify your answer
False
9,501 rounded to the nearest thousand is 10,000 because 5 is in the hundreds place so we round up in the thousand's place.
There are 1,209 horned lizards and 2,405 spiny frogs and 2,812 beaded lizards at the Desert Museum. How many lizards are there at the Museum altogether?
4,021
Austin's pumpkin weighed 1,320 grams. Alaylah's pumpkin weighed 1,410 grams. Cole's pumpkin weighed 1,380 grams. Emma's pumpkin weighed 1,340 grams.
Who had pumpkins that weighed at least 50 grams more than Austin's pumpkin?
Alayha & Cole
Casey said that 628 - 248 = 420. What error did he make?
You can not subtract 40 from 20. He needed to exchange from the hundreds place to make it 120 - 40.
True or False?
I need to make 2 exchanges to solve
461 - 416
False
Which number has an 8 in the tens place, an 6 in the ones place and when rounded to the nearest hundred equals 2,500?
A) 2,864 B) 2,386
C) 2,846 D) 2,486
D) 2,486
8 in the tens place, an 6 in the ones place and when rounded to the nearest hundred equals 2,500
The answer is 8,750 what is the problem?
A) 8,025 rounded to the nearest ten
B) 6,521 + 2,899 C) 10,000 - 2,004
D) 50 + 700 + 8,000
D) 50 + 700 + 8,000
Jacob bought a Mustang for $25,680 three years ago. It had 74,855 miles on it already. Now it currently has 130,993 miles. How many miles did Jacob drive the car in three years?
56,138 miles
In his lifetime, Caleb has caught 359 fish in Gobles and 752 fish in Kalamazoo. How many more fish did he catch in Kalamazoo than Gobles.
Crystal answered 1,111
Billy answered
What mistakes did each make incorrect?
Crystal added the number of fish Caleb caught.
Billy tried to subtract 359 - 752.
They should have subtracted the number of fish caught in Paw Paw from the number of fish caught in Kalamazoo. 752 - 359= 393
Did Chuck make his exchanges correctly if he answered 700 - 236 = 474 ?
No
700 - 236 = 464