Solve It!
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Equation, Please
Regroup or No?
100

3,674 + 4,369=

What is 8,043

100

David bought some candy bars at Walmart. He bought some more candy bars at the gas station. His mom doesn't like candy bars. How many candy bars does David have? 

Add

David had some candy bars and then he got some more. 

100
At a tire factory, 3,166 tires were made on Thursday and 2,941 tires were made on Friday. How many tires were made on Thursday and Friday in all?
What is 6,107 tires
100

Susan has 3,528 miles on her new car. She needs to get the oil changed at 5,000 miles. How many additional miles will Susan drive before needing an oil change? 

Write an equation. 

5,000 - 3,528

We need to find out how much farther she can drive until she gets to 5,000 miles total. She has already driven 3,528 miles. 

100

25,180 - 14,267

Do you need to regroup? If yes, where?

YES!

Use 10 hundreds to make 11 hundreds and then subtract 2 hundreds. 

200

16,000 - 3,173=

12,827

200

Allie and Sean each threw paper airplanes and measured how far they flew in centimeters. Allie's airplane flew a lot farther than Sean's airplane. How far did Allie's airplane fly?

We would add because we know how far Sean's airplane flew and since Allie's went farther, her number should be bigger than Sean's. 

200
Sara scored 2,293 points in a video game. That was 1,536 more than Elvin's score on the same game. How many points did Elvin score?
What is 757 points
200

Molly and Robby have $428 saved to buy a new Playstation and some games that cost $617 total. How much money do they still need to save?

617 - 428

We are finding out the difference between what they saved and how much they need. 

200

23,406 + 15,263 = 

Do you need to regroup? If yes, where?

NO!

None of the sums are greater than 10, so you won't need to regroup in any places to solve this problem. 

300

5,215 + 3,107=

What is 8,322

300

Annie's video on YouTube received a lot of likes the day she posted it. The next day, she received even more likes. How many likes does Annie's video have now?

We would add because we want to find the total number of likes she received on both days. 

300
There are 11,500 seats in the basketball arena. For one game, 9,465 seats were filled. How many seats were empty?
What is 2,035 seats were empty
300

The mailman left 4,179 letters in mailboxes this month. He left 5,226 packages. How many things did the mailman deliver this month? 

4,179 + 5,226

We need to combine the number of packages and letters that he delivered to find our answer. 

300

15,874 - 2,659

Do you need to regroup? If yes, where? 

YES!

You would need to add 10 ones to make 14 ones and then subtract 9 ones.

400

43,674 - 31,372=

12,302

400

Esther has many followers on TikTok. Evelyn has less followers on TikTok than her cousin Esther. How many followers does Evelyn have?

We would subtract because we know that Evelyn has less followers than Esther.

400
Two years ago, Bob bought a used car that had 14,854 miles on the odometer. Last year, he drove 8,240 miles. This year, he drove 9,273 miles. How many miles does the odometer show now?
What is 32,367 miles
400

Jeremiah had 185 stamps in all. He sold 76 stamps to another collector. How many stamps does Jeremiah have now?

185 - 76

We need to figure out how many he has left after selling some of his stamps. 

400

8,904 - 3,571

Do you need to regroup? If yes, where?

YES! 

You would need to add 10 tens and then subtract 7 tens. 

500

2,869 + 25,946=

What is 28,815

500

Justin filled up a container with rice. It took many, many pieces of rice. When he filled up the container with popcorn, he used fewer pieces of popcorn. How many pieces of popcorn did Justin use to fill the container?

We would subtract because we are finding the difference between the two amounts.

500
George bought a car for $17,067. This price included a leather package for $1,248 and a heated seats for $269. What was the price of the car without these features?
What is $15,550
500

Fredrick has played Among Us 328 times. His sister Frieda has played Among Us 119 times less than Fredrick. How many times has Frieda played Among Us?

328 - 119

We are finding the difference between how many times Fredrick and Frieda have played Among Us.

500

34,527 + 42,369 

Do you need to regroup? If yes, where?

YES!

You would need to regroup 16 ones into 1 ten and 6 ones.

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