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Cogito

Grade 1 Math · Chapter 7 · Lesson 5

Practice Worksheet

Which Is More?

Compare two numbers by looking at the tens first.

10 problems · about 11 minutes · 1.NBT.B.3

NameDate

Figure — use these to answer the problems

Count the rods on each side first. Then count the cubes.
Ana
31
Leo
28

31 is greater than 28.

Ana31
Leo28
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “Many Ways to Show a Number”

    2 tens and 16 ones is which number?

    Answer

  2. From “Multiples of Ten”

    Three tens is which number?

    Answer

  3. From “Tens and Ones on a Mat”

    How many tens are in 31?

    Answer

  4. From “Counting Beyond 20”

    What comes right after 20?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. Which is greater, 30 or 27?

    Answer

  2. What do you look at first?

    • The tens.
    • The ones.

  3. Which is greater, 32 or 29?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. Which is greater, 26 or 23?

    Answer

Stretch Yourself

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

2 problems

  1. Which is greater, 18 or 21?

    Answer

  2. Marbles

    Leo has 24 marbles. Ana has 19. Who has more?

    • Leo.
    • Ana.