Students count back 1, 2, or 3 from a given number to subtract (e.g., 10 − 3 → start at 10, say 9, 8, 7).
Real questions from this skill, graded here. No account, and nothing is saved.
Count Back 1, 2, or 3 to Subtract
Grade 1 · Counting, Fluency, and Fact Strategies · question 1 of 3
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12 rungs. A star at the top.
Otis's bus dropped off 1 rider and has 17 riders left. How many riders started?
0:00 of 2:38
Count back to subtract a little.
Do not say the start as a step.
7 + 3: start at 7 and count on 3: 8, 9, 10. 10 − 3: start at 10 and count back 3: 9, 8, 7.
Starting at 7 saves you counting all the way up from 1 again.
Each hop is 1 more, so 3 hops from 7 land on 10.
To take away, start at the big number and count back instead.
Start at the big number. Count on to add, count back to take away.
Saying 7 as the first count, and landing on 9.
7 is where you start. The first hop says 8: 8, 9, 10.
19 − 2 = ___ — 17. Start at 19. Count back 2: 18, 17.
Imagine you have ten apples. You eat three. How many apples are left?
We can write this as ten minus three. Subtract means take away.
Let's use a number line. We'll count backward to find the answer.
Start at ten — that's where we begin.
Count back one. Ten… nine. We land on nine.
Count back two. Nine… eight. We land on eight.
Count back three. Eight… seven. We land on seven.
Ten minus three is seven. Seven apples are left. Great counting!
While they climb, your page writes one true line to ask about tonight, and a short note each Sunday.
A chessboard has 64 squares — share them out between the 8 rows and each row holds exactly 8.
An example student.
Maya earned 2 stars this week — Interpret multiplication as equal groups, which took 6 answers over 3 days before its star landed 3 days ago and Multiply by 6, 7, 8 and 9. Next up: Divide within 100.
An example week.
14 days of every skill, practice packets, Fluency sheets and up to four students. No card.