SME
Grade 1 Math · Problem type
Take from ten
Use this for “Find the number that makes 14 − 8 = ___ true.”
Picture
10 − 8 = 2, 2 + 4 = 6
● A ten (10 ones) ○ Ones
Ones: 4
Left from the 10: 2
This is an example. Type the numbers from your problem to start.
Teen number
−
Taken away
=
Left
Ones
worked out
Left from the 10
worked out
Number sentences
14 = 10 + 4
10 − 8 = 2
2 + 4 = 6
Good to know
•
Split the teen number into 10 and some ones: 14 is 10 and 4.
•
Take the number away from the 10. Then add the ones back.
Step-by-step
WE KNOW
Teen number: 14
Taken away: 8
FIND
ones, left from the 10, left
Step 1 · Find ones
14 = 10 + ?
Split the teen number: the 10 and the ones.
14 − 10
Ones: 4
Step 2 · Find left from the 10
10 − 8 = ?
Take the number away from the 10.
Left from the 10: 2
Step 3 · Find left
2 + 4 = ?
Add what is left from the 10 and the ones.
Left: 6
Check
Put the numbers back in. Both sides should match.
14 = 10 + 4 ✓
10 − 8 = 2 ✓
2 + 4 = 6 ✓
Topic check
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