Unit 2 Math Recap

Math Terms

100

In the number 476, the 4 is in the _____.

hundreds

200

You ___________ a number when you break it apart.

decompose

300

When you write a number decomposed by place value, it is written in _________ _________.

expanded form

400

When you write a number using words only, it is written in ________ _________.

word form

500

When you write a number only using digits, it is written in _________ ________.

standard form

Thinking of a Number

100

Ann is thinking of a number. It has 8 tens, 0 ones, 2 hundreds. What is the number?

280

200

Justin is thinking of a number. It has 7 tens, 2 ones, 3 hundreds. What is the number?

372

300

John is thinking of a number. It has 2 tens, 5 ones, 4 hundreds. What is the number?

425

400

Kayleigh is thinking of a number. It has 2 hundreds, 5 tens, 4 ones. What is the number?

254

500

Teddy is thinking of a number. It has 6 tens, 1 hundreds, and 8 ones. What is the number?

168

Decompose

100

Amie decomposes 845 in different ways. Complete Amie's work.

8 hundreds, 4 tens, and _____ ones

5 ones

200

Amie decomposes 845 in different ways. Complete Amie's work.

8 hundreds, 2 tens, and _____ ones

25 ones

300

Amie decomposes 845 in different ways. Complete Amie's work.

8 hundreds, 1 ten, and _____ ones

35 ones

400

Amie decomposes 845 in different ways. Complete Amie's work.

8 hundreds, 3 tens, and _____ ones

15 ones

500

Amie decomposes 845 in different ways. Complete Amie's work.

8 hundreds, 4 tens, and _____ ones

45 ones

Place Value

100

What is the value of the 1 in the number 221?

1

200

What is the value of the 7 in the number 371?

70

300

What is the value of 5 in 453?

50

400

What is the value of the the 3 in 398?

300

500

When comparing two 3-digit numbers, which place value do you compare first?

hundreds

Variety

100

Rory read a book for 10 minutes each day for 10 days. How many minutes did Rory read?

100 minutes

200

Judy uses 10 packs of beads to make one bracelet. There are 10 beads in each pack. She made 4 bracelets. How many beads did Judy use to make the bracelets?

400 beads

300

How many groups of 10 make 300?

30

400

What is the value of the 6 in 567?

60

500

Landon writes the standard form for three hundred twenty-six at 300206. June writes the standard form as 326. Who is correct? Explain.

Jane is correct. Landon writes 300 for three hundred, 20 for twenty, and 6 for six. Therefore, he writes 300206, and he should write 326.