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Cogito

Grade 1 Math · Chapter 7 · Lesson 8

Practice Worksheet

One More, One Less, Ten More, Ten Less

Move in all four directions and say where you will land.

10 problems · about 12 minutes · 1.NBT.C.5, 1.NBT.A.1

NameDate

Figure — use these to answer the problems

Say where you will land. Then tap the button and check.
Numbers 1 to 40, ten in each row. 25 is chosen.
Chosen number25
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “Ten More, Ten Less”

    What is ten more than 21?

    Answer

  2. From “Greater Than, Less Than, Equal To”

    What does < mean?

    • Is less than.
    • Is greater than.

  3. From “Which Is More?”

    Which is greater, 30 or 27?

    Answer

  4. From “Many Ways to Show a Number”

    2 tens and 16 ones is which number?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. Ten less than 34 is?

    Answer

  2. Which move goes across the row?

    • One more.
    • Ten more.

  3. One less than 30 is?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. Ten more than 19 is?

    Answer

Stretch Yourself

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

2 problems

  1. One more than 39 is?

    Answer

  2. Steps on the Chart

    Ana starts at 26. She goes ten more, then one less.

    Answeris where she lands