Week 01 · Round, add and subtract
Thursday
The apple harvest
// Place value up to 1,000
⏱ about 15 min
Thursday: The apple harvest
Chris the Coyote taps the feather in his hat.
"Gather round, friends. This is the story of the apple harvest," he says.
"One fall, Bennie picked 524 apples from the old orchard."
"He gave 278 apples to friends all along the trail."
"Then he sat down with his basket and wondered."
"How many apples did he have left for the winter?"
Learn it: subtract one place at a time
Start with 524. Take away 278.
Ones: 4 is less than 8, so trade 1 ten for 10 ones.
Now 14 - 8 = 6 ones.
Tens: 1 is less than 7, so trade 1 hundred for 10 tens.
Now 11 - 7 = 4 tens.
Hundreds: 4 - 2 = 2.
So 524 - 278 = 246.
Check with adding.
246 + 278 = 524. That is where we started, so the difference is right.
QUESTIONS ABOUT THE STORY
- Read the question.
- Tap your answer.
How many apples did Bennie pick?Bennie picked 524 apples. He gave away 278. How many are left?
Which addition checks 524 - 278 = 246?
SUBTRACT WITHIN 1,000
- Read the question.
- Tap your answer.
685 - 243 = ?
472 - 158 = ?
731 - 465 = ?
600 - 248 = ?
MORE TRAIL STORIES
- Read the question.
- Tap your answer.
Riley has 500 puzzle pieces. He uses 175. How many are left?Donnie walks 843 steps. Hazel walks 395. How many more steps did Donnie walk?
Lucy counts 362 daisies and 249 clovers. How many flowers?The pond has 910 lily pads. Ducks nibble 637. How many are left?
Subtract the ones, then the tens, then the hundreds.
| Sentence | True or false? |
|---|---|
| 524 - 278 = 246 | ? |
| 685 - 243 = 452 | ? |
| 600 - 248 = 352 | ? |
| 731 - 465 = 366 | ? |
WHY THIS EXERCISE685 - 243 = 442, and 731 - 465 = 266.
Try it
Count out 100 small things, like beans or buttons.
Put them in 10 piles of 10.
Take away 37. Trade a pile of 10 for ones when you need to.
How many are left? Add to check.
Put them in 10 piles of 10.
Take away 37. Trade a pile of 10 for ones when you need to.
How many are left? Add to check.
On paper, draw Bennie and his apple basket. Write how many apples are left.
What a harvest! Tomorrow Freddy has a review game.