Estimation
Units
Division
Subtraction
Vocabulary
100

Round 11 to the nearest ten

What is 10

100

Rename 4 tens

What is 40?
100

12 divided by 3

What is 4?

100

7-5=

7-5=2

100

This number represents the solution(answer) in division

What is the quotient

200

Round 33 to the nearest 10

What is 30

200

Rename 40 tenths

What is 4 or 4.0

200

What 120 divided by 3?

What is 12 tens divided by 3?

What is 40/4 tens.

200

20-10=

20-10=10

200

This number represents one of ten parts

Tenths

300

Round 48 to the nearest 10

What is 50

300

Rename 45 tenths

4.5

300

What is 45 divided by 5?

What is 9?

300

50-30=

50-30=20

300

Fill in the blank ____ tenths = 1 one

10

400

Round 43.1 to the nearest 10

What is 40

400

Rename 1.60 with units

What is 160 hundredths or 16 tenths

400

What is 0.45 divided by 5?

What is 45 hundredths divided by 5?

What is 9 hundredths / 0.09?

400

500-70=

500-70=430

400

Which of these is NOT a strategy for division?

Equal groups, repeated subtraction, or Exponents

Exponents

500

Round 127.2 to the nearest 10

What is 120?
500

Rename 3900 hundredths

What is 39

500

What is 8 divided by 40?

What is 0.5

500

5,555,333-300=

5,555,333-300=5,555,033

500

In the number 89.1 the 8 is in the ____ place

tens