Place Value: millions to thousandths
Tanya needs to write the number twenty-one and twelve thousandths as a decimal on her science lab report. How should she write this in standard form?
21.012
What number is equivalent to 0.87 x 10^4?
8,700
Ian and Rosa race in a speed skating competition. Ian records a time of 42.839 seconds. Rosa records a time of 42.392 seconds. What are their times rounded to the nearest whole number?
Ian- 43 seconds
Rosa- 42 seconds
The chef is making 10.5 batches of dinner rolls. For each batch, he kneaded dough for 0.7 hours and let the dough rest for 1.6 hours. Then he baked the dough for 0.4 hours. How long does it take to make each batch of dinner rolls?
2.7 hours
Jenna ran 3 2/3 yards on Monday. She ran 2 5/6 yards on Friday. Estimate how many yards she ran this week.
7 yards
The expression 4 x 1,000 + 9 x 100 + 2 x 1/10 + 5 x 1/1000 shows a number written in expanded form. Use the expression to write the number in decimal form. Write your answer in the blank.
4,900.205
Write the missing power of 10 the equation.
___ x 0.3 = 3,000
10^5
Enrique weighs five books and rounds the weights to the nearest hundredth.
Which of the weights round to 1.25 pounds?
A 1.255 pounds
B 1.252 pounds
C 1.242 pounds
D 1.248 pounds
E 1.245 pounds
B D E
Marcos has $8.00. He earns $11.50 for mowing the lawn. Then he spends $6.99 for a notebook. How much money, in dollars, does Marcos have left?
$12.51
Janet buys 1 1/4 yards of cloth. She uses 3/8 yard for a craft project. How much cloth, in yards, does Janet have left? Show your work.
7/8 yard
What is 1,000,000 written as a power of 10 in exponent form?
10^6
Which expressions are equivalent to 3.7? Choose all the correct answers.
A 0.37 3 10
B 0.37 4 100
C 0.037 3 10
D 37.0 4 10
E 0.37 4 10
Isabella runs the 100-meter dash five times. The times it takes her to complete these races, in seconds, are 12.7, 12.807, 12.78, 12.08, and 12.087.
What is the fewest number of seconds it takes Isabella to complete the race?
12.08
ake has three pieces of ribbon. The lengths of the ribbons are 136.7 centimeters, 136.85 centimeters, and 104.9 centimeters. What is the difference in length between the longest and shortest pieces of ribbon? Show your work.
31.95 cm
Aiden mixes together 1 1/2 quarts of orange juice and 2 1/4 quarts of pineapple juice. Then he adds 1 1/4 quarts of seltzer to make punch. How much more juice than seltzer does Aiden use to make punch?
2 1/2 quarts more juice than seltzer