Place Value/Powers of 10/Order of Operations
Look at the number 275.26
How does the 2 in the hundreds place compare to the 2 in the tenths place.
The 2 in the hundreds place is 1,000 times greater than the 2 in the tenths place.
8.75 ____8.57
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Round the following decimal to the nearest tenths place:
16.47
16.5
Use your 100s grid to draw a model that shows the following equation:
0.9 + 0.4 =
1.3
145.62
one hundred forty five AND sixty two hundredths
4.567 x 103 =
4,567
1.45 1.54 1.04
1.04, 1.45, 1.54
Round the following decimal to the nearest hundredths place:
2.342
2.34
Use your 100s grid to draw a model that shows the following equation:
0.62 - 0.14
0.48
What is the standard form of the following number:
(2 x 10) + (4 x 1) + (5 x 1/10) + (8 x 1/100) =
24.58
853.7 ÷ 102 =
8.537
Compare the following:
42.05 ______ 42.50
137.5 ______138.5
0.230 ______0.23
42.05 < 42.50
137.5 < 138.5
0.230 = 0.23
Round the following number to the neatest whole number, tenths place, and hundredths place:
48.492
whole number - 48
tenths - 48.5
hundredths - 48.49
Jamal had $23.45 in his piggy bank. For his birthday, his grandma gave him $36.80. How much money does he have in total now?
$60.25
What is the standard form of the following number:
(3 x 1) + (4 x 0.1) + (9 x 0.01) + (2 x 0.001) =
3.492
solve:
20 ÷ (6 - 2) x 7 + 8 =
42
Sarah and Jamie and Kevin are running a race. Their times are listed below:
Sarah - 15.543 seconds
Jamie - 15.054 seconds
Kevin - 15.503 seconds
Place the runners in order of 1st, 2nd, and 3rd.
1st - Jamie
2nd - Kevin
3rd - Sarah
List 3 different numbers that could round to 73.2
73.15, 73.16, 73.17, 73.18, 73.19
73.21, 73.22, 73.23, 73.24
Becky and Brian are both training for a marathon. Becky has run a total distance of 57.20 miles. Brian has run a total distance of 82.67 miles. How many more miles has Brian run than Becky?
25.47 miles
Write the standard form of the number below:
(5 x 1/10) + (4 x 10) + (6 x 1/100) + (9 x 1) =
49.56
Write the expression that matches the scenario below:
6 greater than the product of 7 and (2 less than 5)
6 + (5 - 2) x 7 = 27
OR
7 x (5 - 2) + 6 = 27
Describe in detail the steps for comparing numbers. Use 17.501 and 17.510 as an example
You start by lining up the numbers according to the decimal. Then look at the largest place (tens place) value and compare those 2 digits. 1 and 1 are the same. Move to the next place value down (ones place) and compare those digits. 7 and 7 are the same. Move to the next place value down (tenths place) and compare those digits. 5 and 5 are the same. Move to the next place value down (hundredths place) and compare those digits. 1 is greater than 0, so 17.510 is greater than 17.501
Natalie and Jasmine were both asked to round the number 24.78 to the nearest tenths place. Natalie says it rounds to 25. Jasmine says it rounds to 24.8. Who do you agree with and why?
Jasmine, because she rounded to the tenths place. Natalie rounded to the nearest whole number.
How are the strategies of adding decimals with models and subtracting decimals with models similar and different?
Adding decimals with models uses at least 2 different colors.
Subtracting decimals with models uses 1 color and shows where some have been crossed or X'd off
Write the following number in expanded form, expanded expanded form with fractions, and word form:
436.752
400 + 30 + 6 + 0.7 + 0.05 + 0.002
(4 x 100) + (3 x 10) + (6 x 1) + (7 x 1/10) +
(5 x 1/100) + (2 x 1/1000)
four hundred thirty six AND seven hundred fifty two thousandths