Place Values
How many wholes are in 12.23?
There are 12 wholes.
What are the four ways to represent numbers?
Standard, expanded, word and picture.
What do the following symbols mean?
>
<
=
> greater than
< less than
= equal to
What is the "golden rule for rounding"?
Find the digit.
Look right next door.
5 or more, raise the score.
4 or less, give it a rest.
The word "sum" indicates what operation?
Addition
In the place value chart, what column do the underlined digit fall under?
21.122
Tens
What form is this?
eight hundred sixty thousand thirty-two
Word form
What does ascending and descending order mean?
Ascending = ordering numbers from least to greatest
Descending = ordering numbers from greatest to least
Round to the nearest tens: 3293
3290
What is the most important rule when adding or subtracting numbers with decimals?
You must always line up the decimals.
What the value of the underlined digit?
90345.2135
What is the standard form if 7000 + 400 + 20 + ?
742
23409 < 23490
Is this correct? Explain
Yes, this is correct. In the tens column, 9 is greater than 0.
Round to the nearest hundred thousand: 9,251,954
9,300,000
Solve and explain how you got your answer. 43.06 + 34.23 = ?
1) I lined up the decimals.
2) Added the numbers in this order: hundredths, tenths, ones, tens
3) The answer is 77.29
In the place value chart, what column do the underlined digit fall under?
43.2832
What is the number in expanded form?
432.029
400 + 30 + 2 + 0.02 + 0.009
Order the following numbers in descending order: 0.871, 0.781, 0.87
0.871, 0.87, 0.781
Round to the nearest tenths: 1.654
1.7
Solve and explain. 0.983 - 0.256 = ?
1) I lined up the decimals
2) Subtracted the numbers in the following order and borrowed numbers if needed: thousandths, hundredths, tenths
3) The answer is 0.727
Read this number in two different ways.
4.578
4.578 or 4.578 thousandths.
What is the number in word form?
38334.206
Thirty eight thousand three hundred thirty-four and two hundred six thousandths
Order the following numbers in ascending order:
73840
412.23
412.17
7384
412.009
412.009, 412.17, 412.23, 7384, 73840
Round to the nearest hundredths: 345.423
345.42
Annie jogged every morning this week. How many kilometres did she run? Estimate to the nearest km.
Monday - 4.5km
Tuesday - 6.1km
Wednesday 5.72km
Thursday - 5.4km
Friday - 6.98km
Monday - 5km
Tuesday - 6km
Wednesday - 6km
Thursday 5km
Friday - 7km
She jogged for an estimated 29km this week.