Thursday
Thursday: The lantern rows
Chris the Coyote straightens the feather in his hat.
"Gather close, friends. This is the story of the lantern rows," he says.
"One autumn night, Bruce wanted to light the whole meadow."
"He hung lanterns in 12 rows, with 24 lanterns in each row."
"Riley the Raccoon brought 3 more boxes of 125 candles each."
"Bruce wondered if he had enough candles for every lantern."
"So he and Bennie sat by the pond and multiplied, part by part."
"And the meadow glowed like a sky full of stars."
Story: Counting the lanterns
12 rows of 24 lanterns is 12 × 24. Split 12 into 10 and 2, and 24 into 20 and 4.
| × | 20 | 4 |
|---|---|---|
| 10 | 200 | 40 |
| 2 | 40 | 8 |
12 × 24 = 200 + 40 + 40 + 8 = 288.
The 3 boxes hold 3 × 125 = 375 candles.
375 is more than 288, so Bruce has enough candles.
- Read the question.
- Tap your answer.
How many lanterns are in each row?Learn it: estimate to check
An estimate tells us if an answer makes sense.
Round each factor to the nearest ten.
48 × 21 is close to 50 × 20 = 1,000.
The exact product is 1,008. That is close, so it makes sense.
- Read the question.
- Tap your answer.
More story problems
- Read the question.
- Tap your answer.
Hazel plants 15 rows of 32 tulip bulbs. How many bulbs?
Bennie stacks 7 piles of 308 stones. How many stones?
Riley fills 25 jars with 16 shells each. How many shells?- Read the question.
- Tap your answer.
Bruce has 14 baskets with 26 apples in each. How many apples?
A path has 3 parts. Each part is 1,420 steps. How long is the path?| Sentence | True or false? |
|---|---|
| 12 × 24 = 288 | ? |
| 3 × 125 = 375 | ? |
| 48 × 21 = 1,108 | ? |
| 50 × 20 is a good estimate for 48 × 21. | ? |
Count how many are in one row.
Estimate the total first. Then multiply on paper.
What a glowing meadow! Tomorrow Freddy has a review game.