How do you determine the number of decimals in a multiplication problem?
Count the number of digits behind the decimal in the problem (factors). Then move the decimal in the answer to match that same number of digits.
100
What is the sum?
7.41+9.2
16.61
100
On your desk, write the following in standard (number) form.
One and two hundred six thousandths
1.206
100
What place is the 6 in?
3.016
Thousandths
100
Name three words that tell us to add.
Varies
200
On your desk, show me how to line up the decimals in the following problem:
9.2x71
9.2
x71
200
What is the difference?
7.2-6
1.2
200
What is the decimal equivalent of 8/100?
0.08
200
What place is the 7 in?
2.791
tenths
200
Name two words that tell us to subtract.
Varies
300
Explain how to solve a division problem when there is a decimal in both the divisor and dividend.
Move the decimal in the divisor behind the one's place. Then move the decimal in the dividend the same number of places.
300
What is the product?
2.21x6.3
13.923
300
How do you correctly say 0.71 in word form?
Seventy-one one hundredths
300
What is the closest benchmark to 0.471?
0.5
300
Name two words that tell us to multiply.
Varies
400
On your desk, show me how to line up the decimals in the following:
9.21-7.3
9.21
-7.30
400
What is the quotient?
21.62/2.3
9.4
400
Write 1.02 as a mixed number.
1 2/100
400
Which of these numbers is largest?
423.2
423.4
422.9
423.4
400
Name two words that tell us to divide.
Varies.
500
Place the decimal to make it true:
8.72x6.41=558952
55.8952
500
Estimate 6.21+ 7.8 to the nearest whole number.
14
500
Josh ran 100m in 9.6 s, Maria in 9.9 s, and Alex in 9.4 s. Who won the race?
Alex
500
Use this number to answer these questions: 204,521.862
What is the whole number? (Read in standard form.)
What is the decimal? (Read in standard form.)
Two hundred four thousand, five hundred twenty-one.
Eight hundred sixty two thousandths.