Powers of 10
Write with an exponent:
10x10x10x10
104
True or False:
The 2 in 425 is 10 times the value of the 2 in 132.
Explain.
True.
The 2 in 425 is worth 20. The 2 in 132 has a value of 2.
20 is 10 times 2.
Peter ran faster. 0 tenths is less than 6 tenths.
Amber bought the following fruit for fruit salad:
1.2 lb bananas
1.04 lb apples
1.02 lb grapes
Put the weights in order from LEAST to GREATEST.
1.02, 1.04, 1.2
Write in standard form:
Two hundred eighty-seven thousand, four hundred sixteen and twelve hundredths
287,416.12
Write in standard form:
8x106
8,000,000
Which number has an 8 that is 10 times the value of the 8 in 82,945?
a) 846,953
b) 18,639
c) 45,875
a) 846,953
One spotted lanternfly is 1.045 inches long. Another 1.05 inches long. Use <, >, or = to compare.
1.045 1.05
1.045<1.05
Put the rainfall in order from GREATEST to LEAST.
September 1.1 inches
October 1.005 inches
November 1.37 inches
1.37, 1.1, 1.005
Write in standard form:
(5x106)+(5x105)+(3x103)+(4x102)+(1x101)+(8x100)+(2x1/10)
Hint: Write the digits. Then put the commas.
5,503,418.2
Write an expression with an exponent. Then solve.
14x10x10x10x10x10
14x105= 1,400,000
Isabella read for 47.76 minutes. Complete the sentence to describe the relationship between the 7s:
The 7 in the tenths place is _________ the value of the 7 in the ones place.
1/10
Sagine wants to buy a table that is 186.23 cm long. The space she has for it is 186.36. Is there enough room for the table? How do you know?
Yes, there is enough room because both have 186.
.2<.3, so the table is smaller than the space.
A truck driver drove the following distances last month:
Week 1: 1,427.8 miles
Week 2: 1,397.94 miles
Week 3: 989.5 miles
Week 4: 987.68 miles
Put the distances in order from shortest to longest.
987.68
989.68
1,397.94
1,427.8
Write in standard form:
Two million, two hundred twenty-two thousand, two hundred twenty-two and two tenths.
2,222,222.2
Asa scored 8.2x102 points in a game.
Mohamad scored 7.9x103 points.
Who scored more points? How do you know?
Mohamad's score was higher because 7.9x103=7,900 but Asa only scored 820 points. The exponent tells you how many times to move the decimal point.
Rylee baked 8.22 pounds of ziti for a party. Describe the relationship between the value of the twos.
The 2 in the tenths place is 10 times the value of the 2 in the hundredths place.
Or
The 2 in the hundredths place is 1/10 the value of the 2 in the tenths place.
Two swimmers were racing for the world championship. Their times were 46.910 seconds and 46.94 seconds. What was the winning time? How do you know?
46.910 because .01<.04