Writing Numbers
Write 1,002.09 in word form
one thousand two and nine hundredths
Which is greater? 10.456 or 10.3
10.456
Round 57,943 to the nearest ten thousand.
60,000
14,560 x 1,000 =
14,560,000
Round 14.235 to the nearest tenth, hundredth, one, and ten.
tenth: 14.2
hundredth: 14.24
one: 14
ten: 10
Write 4,392,600.3 in expanded form
(4 x 1,000,000) + (3 x 100,000) + (9 x 10,000) + (2 x 1,000) + (6 x 100) + (3 x .1)
Which is less? 302.008 or 320.002
302.008
Round 36,811 to the nearest thousand.
37,000
Explain why 6, 700 × 10^2 = 670,000. You can draw a picture to help illustrate your explanation.
6, 700 × 10^2 = 670,000 because when you multiply by a power of 10, you shift the digits to the left the same number of places as the power of 10. The problem is multiplying the number by 10^2 so you shift 6,700 2 places to the left.
Round 3.462 to the nearest tenth, hundredth, and one
tenth: 3.5
hundredth: 3.46
one: 3
Write 5,555,055.5 in word form.
five million, five hundred fifty-five thousand, fifty-five, and five-tenths
True or False? 99.9 is less than 99.09
False
37,370 ÷ 10 = ________________
3,737
Round 243.875 to the nearest tenth, hundredth, ten, and hundred.
tenth: 243.9
hundredth: 243.88
ten: 240
hundred: 200
Write this number in standard form:
(6 x 1,000,000) + (6 x 10,000) + (6 x 1,000) + (6 x 1) + (6 x .001)
6,066,006.006
Which is greater? 3,000,020 or 3,000,002
3,000,020
3,200 = ________ x 32,000
1/10
A number rounded to the nearest hundredth place is 5.64. Make a list of at least 8 possible numbers that can round to 5.64. Explain your thinking.
Any value greater than or equal to 5.635 and less than 5.645 will round to 5.64. There are many right answers! Some possible ones are:
5.641, 5.6409, 5.64001, 5.639, 5.644, 5.64008, 5.635, 5.638, etc.
Write 271,641,201.178 in word form.
two hundred seventy one million, six hundred forty one thousand, two hundred one, and one-hundred seventy eight thousanths
Which is greater? 7 hundreds, 3 tens and 8 ones OR 73 tens and 8 ones
They are equal.
Anita owns a restaurant. Last year the restaurant cooked 103,400 cups of rice. The restaurant is on track to cook 221,450 cups of rice over last year and this year. How many cups of rice will the restaurant cook this year?
118,050 cups of rice
A decimal number has three digits to the right of its decimal point. If we round it to the nearest tenth, the result is 18.6. What is the maximum possible value of this number? Use words and/or the number line to explain your reasoning
18.649 is the largest value possible that will round to 18.6. Anything larger would round to 18.7.