Multiplying Decimals by powers of 10.
The baseball stadium in our town holds thousands of people. Today is Bring Your Dog Day and they're only charging $3.45 admission.
1 person is $3.45 how many people get to go for $ 34.50?
10 people. Anytime you multiply a decimal by a power of 10 (10,100, 1000) the decimal moves over to the left a certain amount of times based on the number of 0's in the power of 10.
Write the symbol >, < or = to compare the decimals:
0.85 and 0.9
0.85 < 0.9
3.98 + 4.77= ?
8.75
How would you write four hundred fifty-eight thousandths in number form and expanded form?
Number form 0.458 because the 8 needs to end in the thousandths place. It also doesn't say there is a whole number and the word "and" which means a decimal.
Expanded Form 0 x 1+ 4 x 1/10 + 5 x 1/100 + 8 x 1/1000. You take each number and multiply it to their place value. Then add each together.
How many grams 693 kilograms? 693 kg = ___
69300 g. When we go to from a bigger unit, kilograms, to a smaller unit, grams, we multiply by the number of grams are in a kilogram.
The baseball stadium in our town holds thousands of people. Today is Bring Your Dog Day and they're only charging $3.45 admission.
1 person is $3.45 how much for 100 people to go?
$345.00 Anytime you multiply a decimal by a power of 10 (10,100, 1000) the decimal moves over to the left a certain amount of times based on the number of 0's in the power of 10.
Write the symbol >, < or = to compare the decimals:
0.403 and 0.430
0.403 < 0.430
8.75 - 5.4=?
3.35
How would you write 9.075 in word form and expanded form?
Word form is nine and seventy five thousandths.
Expanded form would be 9 x 1 + 0 x 1/10 + 7 x 1/100 + 5 x 1/1000.
How many kilograms is 56 grams? 56g=____ kg
0.056 kg. When we go from a smaller unit, grams, to a bigger unit, kilograms, we divide by the number of grams in a kilogram.
The baseball stadium in our town holds thousands of people. Today is Bring Your Dog Day and they're only charging $3.45 admission.
1 person is $3.45 how much for 1000 people to go?
$3450.00. Anytime you multiply a decimal by a power of 10 (10,100, 1000) the decimal moves over to the left a certain amount of times based on the number of 0's in the power of 10.
Write the symbol >, < or = to compare the decimals:
9.326 and 9.236
9.326 > 9.236
4.98 + 2.25=?
7.23
Number form is 2.549. The 2 is multiplied by one which is the ones place value, 5 is multiplied by 1/10 which is the tenths place, 4 is multiplied by 1/100 which is the hundredths place, and 9 is multiplied by 1/1000 which is the thousandths place.
Word form is two and five hundred forty nine thousandths. The 9 ends in the thousandths place.
How many milligrams is 7.3 grams? 7.3 g=____ mg
7300 mg. When we go to from a bigger unit, kilograms, to a smaller unit, milligrams, we multiply by the number of milligrams are in a gram.
What happens to the number of zeroes in the product as you multiply a number by powers of 10 (10, 100, 1000)?
Anytime you multiply a decimal or number by a power of 10 (10,100, 1000) the decimal moves over to the right a certain amount of times based on the number of 0's in the power of 10. The digits are moving to the left making the decimal look like it is moving to the right. Each power of 10 increases 10 times it's value.
Round the following number to the nearest whole number, tenth and hundredth.
8.702
To the nearest whole number is 9
To the nearest tenth is 8.7
To the nearest hundredth is 8.70
6.03 -2.70=?
3.33
73.3 + 45.4=?
118.7
How many kilograms is 11,250 grams? 11,250 g= ____kg.
11.250 kg. When we go from a smaller unit, grams, to a bigger unit, kilograms, we divide by the number of grams in a kilogram.
Sara was looking at the table above. She noticed that when you multiply a number by powers of 10 (10,100,1000), the decimal point moves over to the right by one place every time. Explain why it works this way.
Anytime you multiply a decimal or number by a power of 10 (10,100, 1000) the decimal moves over to the right a certain amount of times based on the number of 0's in the power of 10. The digits are moving to the left making the decimal look like it is moving to the right. Each power of 10 increases 10 times it's value.
Round the following number to the nearest whole number, tenth and hundredth.
18.975
To the nearest whole number is 19
To the nearest tenth is 19
To the nearest hundredth is 18.98
3.97 - 0.97=?
3
Order the following decimals by approximately in the correct place on the number line:
0.508, 0.805, 0.085, 0.985
0.085, 0.508, 0.805, 0.985. On the number line between 0 and 1 there needs to be 10 tick marks. Each represents a tenth. Then you place the decimals based on the tenths place first.