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Cogito

Grade 1 Math · Chapter 5 · Lesson 3

Practice Worksheet

Making Ten From Eight

Now move two across.

10 problems · about 13 minutes · 1.OA.C.6, 1.OA.B.3

NameDate

Figure — use these to answer the problems

Change the first number. Notice how many it needs each time.
First ten
The rest
First number8
Second number5
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “Making Ten From Nine”

    9 + 5 = ?

    Answer

  2. From “Adding Three Numbers”

    3 + 7 + 5 = ?

    Answer

  3. From “Counting to Twenty and Back”

    What comes after 18?

    Answer

  4. From “One More, One Less to Twenty”

    One more than 11?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 8 + 5 = ?

    Answer

  2. 8 + 9 = ?

    Answer

  3. 8 + 4 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. 8 + 8 = ?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

2 problems

  1. 7 + 5 = ?

    Answer

  2. Bookshelf

    There are 8 books on one shelf and 7 on another. How many books in all?

    Answerbooks