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Cogito

Grade 1 Math · Chapter 4 · Lesson 3

Practice Worksheet

Saying It the Ten Way

Thirteen is really "ten three".

10 problems · about 10 minutes · 1.NBT.B.2.b

NameDate

Figure — use these to answer the problems

Change the number and say it the ten way each time.

Tens

1

Ones

3

Blocks13

Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

5 problems

From “Ten and Some More”
10 + 2 = ?
Answer
From “Ten Ones Make One Ten”
How many ones are in one ten?
Answer
From “Adding and Subtracting to Ten”
7 − 2 = ?
Answer
From “Subtracting From Ten”
10 − 6 = ?
Answer
From “Taking Nothing and Taking All”
10 − 10 = ?
Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

Ten five is which number?
Answer
How many tens are in 17?
Answer
Ten two is which number?
Answer

Build It Up

The same ideas with more to keep track of.

1 problem

Ten eight is which number?
Answer

Stretch Yourself

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

1 problem

Saying It Out Loud
One ten and 6 ones. What number is that?
Answer