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Week 06 · Compare big numbers

Thursday

The star counter
// Greater, less, 10 more and 100 more
⏱ about 15 min

Thursday: The star counter

Chris the Coyote looks up at the night sky.

"Oliver loves to count stars," Chris says softly.

"One night he counted 250 stars."

"The next night was clearer. He saw 100 more stars."

"The third night, clouds came. He saw 100 fewer than the first night."

Learn it: 100 more and 100 less

100 more changes only the hundreds digit.

250 has 2 hundreds. 100 more has 3 hundreds.

So 100 more than 250 is 350.

100 less than 250 is 150.

Base-ten blocks: 2 hundreds, 5 tens and 0 ones
QUESTIONS ABOUT THE STORY
  • Read the question.
  • Tap your answer.
A starHow many stars on the first night?
How many stars on the second night?
How many stars on the third night?
100 MORE OR 100 LESS
  • Read the question.
  • Tap your answer.
418 + 100 = ?
763 - 100 = ?
890 + 100 = ?
105 - 100 = ?
WHICH NIGHT HAD MORE STARS?
  • Read the question.
  • Tap your answer.
Which is greater, 350 or 305?
150 ? 250
Which is less, 482 or 428?
COUNT BY HUNDREDS
  • Each number is 100 more.
  • Only the hundreds digit changes.
11st
22nd
33rd
44th
55th
SentenceTrue or false?
100 more than 326 is 426.?
100 less than 700 is 690.?
350 > 250?
WHY THIS EXERCISE100 less than 700 is 600. 690 is 10 less.
Try it
Look at the sky tonight with a grown-up.
Count the stars you can see.
Is it more or less than 10?
Draw the sky on the night with the most stars.

Word Spot: paper, together, got

Here are new sight words.

Look at each word. Say it. Spell it.

Paper: P-A-P-E-R.

Together: T-O-G-E-T-H-E-R.

Got: G-O-T.

FIND THE WORD
  • Listen to the word.
  • Tap it.
Find the word you hear.
Find the word you hear.
Find the word you hear.
Find the word you hear.
FILL THE GAP
  • Listen to the sentence.
  • Tap the missing word.
Write your answer on the ___.
We built the tower ___.
We ___ wet in the rain.

What a sky! Tomorrow Freddy has a comparing game.

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