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Cogito

Grade 1 Math · Chapter 10 · Lesson 6

Practice Worksheet

Ten More, Ten Less to 100

Move by ten anywhere on the chart.

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

NameDate

Figure — use these to answer the problems

Say your answer first. Then tap and check.
Numbers 1 to 100, ten in each row. 54 is chosen.
Chosen number54
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “Comparing Numbers to 100”

    Which is greater, 38 or 41?

    Answer

  2. From “Counting to 120”

    What comes right after 104?

    Answer

  3. From “Numbers to 100”

    How many ones are in 86?

    Answer

  4. From “Two-Bar Tape Diagrams”

    Bars of 15 and 8. What is the difference?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. Ten more than 66 is?

    Answer

  2. Ten less than 41 is?

    Answer

  3. Ten more than 35 is?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. Ten less than 72 is?

    Answer

Stretch Yourself

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

2 problems

  1. Ten more than 90 is?

    Answer

  2. Saving Stickers

    Ana has 48 stickers. She gets ten more. How many now?

    Answerstickers