SME
Kindergarten Math · Problem type
Subtract by taking from
Use this for “7 birds, 3 fly away. How many are left?”
Picture
7 − 3 = 4
● Left ✕ Taken away
This is an example. Type the numbers from your problem to start.
Start
−
Taken away
=
Left
Number sentences
7 − 3 = 4
Good to know
•
Start with some. Take some away. Count how many are left.
•
Taking some away leaves fewer. Take away 0, and the same number is left.
Step-by-step
WE KNOW
Start: 7
Taken away: 3
FIND
left
Step 1 · Find left
7 − 3 = ?
Cross out the ones taken away. Count the ones left.
Count back 3 from 7: 6, 5, 4 → 4
Left: 4
Check
Put the numbers back in. Both sides should match.
7 − 3 = 4 ✓
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