Exponents

Rounding

Adding & Subtracting Decimals

Multiplying & Dividing Decimals

Multiplying Whole numbers

Write 1000 as an exponent

3
10

Round 8.487 to the nearest hundredth

8.49

0.3 + 0.82

1.12

4 thousandths times 3

0.004 times 3 = 0.012

Triple the sum of 33 and 27

180

100 times 100

4
10

Round .985 to the nearest one

1

91.49 - 0.7

90.79

4.236 ÷ 3 =

1.412

The difference between 4 twenty-fives and 3 twenty-fives

(4 times 25) - (3 times 25) = 100-75 = 25

4
39 times 10

390,000

Round 8.356 to the nearest one and to the nearest thousandth.

nearest one = 8
nearest thousandth 8.356

22.78 + 0.2 + 321.002 =

343.982

4 times as much as 20.075

80.3

343 times 21 =

7203

4
7200 divided by 10

.7200

Jules reads that one pint is equivalent to 0.473 liters. He asks his teacher how many liters there are in a pint. His teacher responds that there are about 0.47 liters in a pint. He asks his parents, and they say there are about 0.5 liters in a pint. Jules says they are both correct. How can that be true?

the teacher rounded to the nearest hundredth (.47)
parents rounded to the nearest tenth (.5)

27 hundredths + 5 hundredths =_____hundredths =_____tenths _____hundredths = ______

27 hundredths + 5 hundredths = 32 hundredths = 3 tenths 2 hundredths = .32

16.404 ÷ 6 = _____

2.734

434 times 32

868

4. After a lesson on exponents, Tia went home and said to
4
her mom, “I learned that 10 is the same as 40,000.” Is she correct? Why or Why not?

4
She is not correct. 10 is the same as 10,000

A decimal number has two digits to the right of its decimal point. If we round it to the nearest tenth, the result is (13.7). What is the maximum possible value of this number?

13.74

A pen costs $2.09. It costs $0.45 less than a marker. Ken paid for one pen and one marker with a five dollar bill. What is Ken's change?

$2.46

Esperanza usually buys avocados for $0.94 apiece. During a sale, she gets 5 avocados for $4.10. How much money did she save per avocado?

She saved $0.12 per avocado

A box contains 24 oranges. Mr. Lee ordered 8 boxes for his store and 12 boxes for his restaurant. Write an expression to show how to find the total number of oranges ordered. Solve.

(24 times 8) + (24 times 12) = 480

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