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Number Trail Grade 1 / Week 05 / Wednesday
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Week 05 · Find the missing number

Wednesday

The ? can be anywhere
// Riley's number puzzles
⏱ about 15 min

Wednesday: The ? can be anywhere

Riley holds up his lantern.

"My puzzle hides the first number this time," he says.

"Can you find it?" Bennie smiles and gets to work.

Learn it: a ? at the start

Look at ? + 4 = 7.

The first part is missing.

The whole is 7. One part is 4.

Bennie thinks, "4 and what make 7?"

He counts on from 4, "5, 6, 7." That is 3.

A ten-frame with three red counters and four gold counters

3 red and 4 gold make 7. So 3 + 4 = 7.

FIND THE FIRST NUMBER
  • Read the question.
  • Tap your answer.
A ten-frame with three red counters and four gold counters? + 4 = 7
A ten-frame with four red counters and two gold counters? + 2 = 6
A ten-frame with four red counters and five gold counters? + 5 = 9
A ten-frame with nine red counters and one gold counter? + 1 = 10

The equal sign can come first

The = sign means "the same as."

So 8 = 5 + ? is a puzzle too.

8 is the same as 5 and what?

Count on from 5 to 8. The ? is 3.

Hops on a number line from 5 to 8
READ BOTH SIDES
  • Read the question.
  • Tap your answer.
A number line from 0 to 10, with hops from 5 to 88 = 5 + ?
10 = 6 + ?
7 = ? + 7
9 = 3 + ?
A ? BEFORE TAKING AWAY
  • Read the question.
  • Tap your answer.
? - 2 = 6
? - 3 = 4
? - 5 = 5
PuzzleTrue or false?
? + 4 = 7: is ? 3??
9 = 3 + ?: is ? 5??
? - 2 = 6: is ? 8??
10 = ? + 6: is ? 4??
WHY THIS EXERCISE9 = 3 + 6. So the ? is 6.
START-OF-STORY PUZZLES
  • Read the question.
  • Tap your answer.
duckSome ducks swim in the pond. 3 more come. Now there are 8. How many were there at first?
appleBennie had some apples. He ate 2. Now he has 4. How many did he have?
Try it
Ask a grown-up to hide some blocks in one hand.
They show you 3 blocks in the other hand.
They tell you there are 7 in all.
How many are in the closed hand?

Word Spot: form, small

Here are new sight words.

Look at each word. Say it. Spell it.

Form: F-O-R-M.

Small: S-M-A-L-L.

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.
Clouds ___ in the sky.
An ant is very ___.

Wonderful! Tomorrow Chris tells a lantern story.

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