Decimal Place Value
Write 3/100 as a decimal
What is .03?
Mrs. Brown spends $31.62 on new books for her classroom library. Miss Roberts spends $12.31 on new markers. How much did they spend all together?
$43.93
12.33 + 3.33
What is 15.66?
Subtract 13.9 - 2.8
What is 11.1?
Use mental math to solve:
21.75 + 3.25 + 4.50
What is 29.50?
15 8/1000 written as a decimal.
What is 15.008?
Lily needs a bag dog food and a new toy. If the dog food is $32.93 and the toy is $4.67, about how much money does Miss Roberts need?
Bonus: Write the estimate and solve for the exact dollar amount.
She needs about $38.00
Bonus:
She needs exactly $37.60
Add the decimals 43.28 + 31.45
What is 74.73?
Mrs. Osman went to the movies with Emma this weekend. They went to the theater with $20.
Mrs. Osman's ticket cost $10.00 and Emma's ticket cost $6.75.
How much change did Mrs. Osman get back after buying their tickets?
What is $3.25?
Miss Tracy's dog Sadie weighs 61.3 lbs. Lily weighs 43.7 lbs.
About how much do these dogs weigh all together?
What is about 105 pounds?
Also counts:
What is about 100 pounds?
241.135
What is the value of the 3?
What is three hundredths
Abby has $38.00. She spent $29.37 on a new sweatshirt. How much does Abby have left?
What is $8.63?
One board is 1.45 meters long. The other is .7 meters long.
What is the total length of the boards when they are placed end to end?
What is 2.15 meters long?
87.21 - 68.32
What is 18.89?
(Use the grid side of your board to respond)
Show a visual model to represent 0.2 + 0.65 -->Then write your answer in decimal form
What is 0.85?
(Correct decimal and model for points)
What is 10 times less than 0.3?
Bonus:
What is 100 times less than 0.3?
0.03
Bonus:
0.003
Julie has saved $24.72 and Jamie has saved $5.81.
How much more has Julie saved than Jamie?
219.51 + 127.2 + 2.49
What is 349.2?
Miss Cope spent 58.32 hours at school last week. Miss Roberts spent 50.8 hours at school last week.
How many more hours did Miss Cope spend at school than Miss Roberts?
58.32 - 50.8 = 7.52
What is 7.52 hours more?
Miss Cope's desk is 33.28 inches long and 46.84 inches wide.
Estimate the perimeter of her desk to the nearest tenth of an inch. (hint: Round first for an estimate, not at the end)
Bonus: Solve for the exact perimeter of her desk.
What is about 160.4 inches?
Bonus:
What is 160.24 inches?
Mystery Number:
2 in the ones place
7 in the thousandths place
6 in the hundredths place
5 in the tenths place
Bonus: Round this number to the nearest hundredths.
What is 2.567?
Bonus:
What is 2.57?
Luis has two $10 bills and three $5 bills. (how much money is this?)
He spends $2.36 on a toy car and $12.67 on a lego set. (how much did he spend?)
How much money does he have left?
What is $19.97?
Here is how much it snowed from November to February this year in the Burlington area:
November: 19.5in
December: 8.6in
January: 41.8in
Febrary: 17.3in
Make an estimate for about how much snow fell for those four months?
Expression (rounded to nearest whole number) 20+9+42+17
Accepted answers:
What is about 90 inches?
What is about 88 inches?
Mrs. Brown said that 9.09 - 0.1 = 9.08. Is her answer correct? Why or why not?
(To earn the points you need to give your answer and justification using words, pictures, and/or numbers.)
No she is not correct.
Sample response: Mrs. Brown took away one hundredth instead of one tenth. One hundredth is 0.01 not 0.1 She needed to place (annex) a zero after the one when subtracting, not before her one.
9.09 - 0.1 = 8.99
Write which of the expressions are equal to
4.39 + 2.41. (This means they have the same answer) Show your work!
a) 4.4 + 2.4
b) 10.4 - 3.2
c) 2.41 + 4.39
d) 10.2 - 3.8
e) 4.39 - 2.41
4.39 + 2.41 = 6.8
a) 4.4 + 2.4 = 6.8 YES
b) 10.4-3.2 = 7.2 NO
c) 2.41 + 4.39 = 6.8 NO
d) 10.2 - 3.8 = 6.4 YES
e) 4.39 - 2.41 = 1.98 NO