Decimals
Write as a decimal 4/10
0.4
49 x 82 =
4,018
Sam ran 4/10 of a mile. Caroline ran 24/100 of a mile. Caroline says she ran further because 24 is greater than 4. Is she correct or incorrect? How do you know?
She is incorrect because 4/10 becomes 40/100 which is greater than 24/100
Compare the following using <, >, or =.
2/3 4/8
2/3 > 4/8
Make the following into seconds
3 minutes
180 seconds
Write as a decimal 6/100
0.06
83 x 79 =
6,557
Kevin is making kg into g. He says 3.4 kg is equal to 340g. Is Kevin correct or incorrect? How do you know?
Kevin is incorrect because 1kg = 1,000g so 3.4kg should equal 3 kg 400g or 3,400 g.
Write two equations that equal 8/12
Make the following into seconds 3 minutes 49 seconds
229 seconds
Compare using <, >, or =
8.4 8.40
=
432 ÷ 8 =
54
Brian bought 3 cookies that each cost 85 cents. He paid with a $5 bill. How much change should he receive?
$2.55 for the cookies
change $2.45
They ate the same amount 1/2 = 3/6
Make the following into ounces
2 lb 10 oz
42 oz
.78
527 ÷ 9 =
58 r 5
Anna has 2 pounds of candy. She eats 7 ounces of candy from the bag. How many ounces of candy are left?
25 ounces
Subtract.
7 1/4 - 2 3/4 =
4 2/4
4 1/2
Sam writes 5.3 kg as 5 kg 3,000g. What is wrong about is answer? How can he fix it?
he should write it as 5kg 300g because 1kg = 1,000g
Write 40 hundredths in 2 ways.
40/100
0.40
4,867 ÷ 4 =
1,216 r 3
Julia ran 6/10 of a mile. Matt ran 5/10 of a mile, stopped for a break, and then ran 8/100 of a mile. In total Matt ran 58/100 of a mile. Matt says he ran the greater distance because 58 is more than 6.
What is wrong with Matt's idea? Explain how Matt can fix his idea.
He is wrong because 6/10 becomes 60/100 which is larger than 58/100 so Julia ran longer than Matt.
8 1/5 - 3 4/5 =
4 2/5
Sarah has 4 ft 8 in of rope. She uses 14 in of rope for a project. How much rope does she have left after her project is done?
56-42 = 28 inches left