Estimating
Estimate the following problem by rounding to the nearest tenth
3.45 + 3.54
7
2.65 + 3.78
6.43
Solve the problem, then write the equivalent decimal as your answer
3.05+1.65
equivalent decimal: 4.7
5.876 - 3.25
2.626
Kayla's dollhouse has 15.15 square feet downstairs and 6.45 square feet upstairs. What is the estimated total area if you round the numbers to the nearest tenth?
21.7
Estimate the following problem by rounding to the nearest hundredth
1.563 - 1.210
2.77
102.03
Solve the problem, then write the equivalent decimal as your answer
8.5-4.8
Equivalent Decimal = 3.7
12.00-5.32
6.68
Ed is training for a race. He ran 12.56 miles on one day. 12.98 miles the second day, and 13.04 miles the third day. What is his combined distance for the first three days?
35.58 miles
Estimate the following problem by rounding to the nearest whole number.
20.135 + 35.789
56
What is the combined total of the following decimals
834.5
2.93
95.2
932.63
Solve the problem, then write the equivalent decimal as your answer
4.25 + 1.55
Equivalent Decimal = 5.8
84.245 - 64.27
Amber bought a hardcover book for $23.70 and a paperback for $6.91. How much did she spend in all? If she paid with 2 twenty dollar bills, how much change did she get?
Spent: $30.61
Change: $9.39
When rounding the following problem: 15.34 + 12.72, which option would get me closest to the real answer?
a. Rounding to the nearest whole number.
b. Rounding to the nearest tenth.
a. Rounding to the nearest whole number.
Which two equations result in a sum of 4.3
a. 1.20 + 3.10
b. 4 + 0.03
c. 4 + 0.3
a. 1.20 + 3.10 , c. 4 + 0.3
Solve the problem, then write the equivalent decimal as your answer
11.4-6.6
How can you check if the difference you calculated is correct?
Add the difference to the number you subtracted in your original problem. If you get the number that was subtracted from, then your answer is correct.
The Thomas Jefferson Memorial in on 18.36 acres of land. The Franklin Delano Roosevelt Memorial is on 7.5 acres of land. The Vietnam Veterans Memorial is on 8.9 acres of land. and the Word War I Memorial is on 9.6 acres of land.
Which two memorials have the greatest difference in area?
Thomas Jefferson Memorial and Franklin Delano Roosevelt Memorial
The difference is 10.86 acres
Create a problem that when rounded to the nearest whole number would result in a difference of 29.
answers will vary
Which decimal number would make this equation true?
8.86 - ? = 9.85
3.99
Solve the problem, then write the equivalent decimal as your answer
(4.32 + 9.12) - 0.24
Equivalent Decimal = 13.2
Which decimal number would make this equation true?
8.56 - ? = 3.98
4.58
Kassandra has a rectangular patio in her backyard. The patio is 12.74 meters long and 5.45 meters wide. If she wants to put a fence around the patio, how many meters of fence will she need?
36.38