Add/Subtract Decimals
9.76 + .91, solve using standard algorithm.
10.67
Round to the nearest tenth
12.56
12.6
True or False
0.07 > 0.70
False
0.07 < 0.70
8.1 x 102
8.1 x 100 =
810
Naomi has .84 lbs of crayons in her backpack and her backpack weighs 0.7 lbs, what is the total weighed on her backpack on the bus home?
Her backpack weighs 1.54 lbs total on the bus ride home.
6.37 + 5.45 =
11.82
Round to the nearest hundreds
678.2
700
Use <, >, or =.
Seventy-two and thirty-five thousandths ____ 72.38
72.035 < 72.38
Write 896 tenths as a decimal.
89.6
Ms.Bhakta multiplies 3.75 by 103, she gets an answer of 375. Is that correct?
No, her answer should have been 3,750 if we multiply 3.75 by 1,000.
19.8 - 4.35 =
15.45
Which number rounds to 15 when rounded to the nearest whole number?
a. 14.37
b. 14.6
c. 15.5
d. 15.73
b. 14.6 is closer to 15 than 14, when rounding to the nearest whole number.
Compare using <,>, or =.
342 hundredths + 7 tenths ___ 3 +49 hundredths
=
Which expression shows 0.018 written in expanded form?
a. (1 x .01) + (8 x .001)
b. (1 x 0.1) + (8 x .01)
c. (1 x 10) + (9 x 1)
a. (1 x .01) + (8 x .001) =
.018
Luke says that 98 tenths is equal to 98. Malik says 98 tenths is equal to 9.8. Who is correct? Why?
Malik is correct since 10 tenths = 1 whole, so we have 9 whole numbers with 8 tenths from 98 tenths.
62.52 - 4 =
58.52
What is the value of 6.268 when rounded to the nearest hundredth?
6.27 when rounded to the nearest hundredth, since the 8 in the thousandths makes it closer.
3.215 rounded __________ 3,215/ 103
to the hundredths place
>
8.1 x 102
8.1 x 100 =
810
Ms. Anaya went to the store. She paid $5.80 for fruits, $2.25 for vegetables, and $20.58 for meat. How much money did Ms. Anaya spend in total for groceries?
$5.80 + $2.25 + $20.58 = $28.63
Ms. Anaya paid $28.63 for her groceries.
Add 34.78 + 9.602 + 1.008 =
45.490
Select 2 numbers that round to 130 when rounded to the nearest tenth.
a. 130.039
b. 128.97
c. 130.401
d. 129.95
e. 129.641
a. 130.039 & d. 129.95
Alexis multiplies the value of 3.22 by 10 four times, the divides the answer by 100.
What is her final answer?
322
The value of the 8 in 2.518 is ____ the value of the 8 in 20.48.es
a. 1/1,000 of
b. 1/100 of
c. 1/10 of
d. 10 times
c. 1/10 of
Mrs.Cummingham is buying supplies for science class, for 8 groups.
Each group needs a microscope, which costs $100.
Each group needs 2 lab kits, and each kit costs $5.
How much money does Mrs. Cummingham need to buy the supplies for the class?
$100 + ($5 x 2) = $100 + $10 = $110 per group.
$110 x 8 = $880
Mrs.Cummingham needs $880 to buy the supplies for the class.