Lesson 1-2
455 × 1,000 = ___________________
455,000
a. Express nine thousandths as a decimal.
b. Express twenty-nine thousandths as a fraction.
a. 0.009
b. 29/1000
115.376
a. Hundredths
b. Ones
c. Tens
a. 115.38
b. 115
c. 12
a. 2.40 + 1.8 = ____________
b. 36.25 + 8.67 = ____________
a. 4.2
b. 44.92
Solve using area model
3 × 9.63
Ms. Manfredi will check your area model
a. 28.89
3632.1 ÷ 10 = ___________________
363.21
Express 24.357 in words.
a. Write the expanded form using fractions or decimals.
b. Express in unit form.
a. twenty-four and three hundred fifty-seven thousandths
b. 24 ones and 357 thousandths
Show the numbers on the place value chart using digits. Use >, <, or = to compare. Explain your thinkingcin the space to the right.
a. 167.4 167.462
b. 32.725 32.735
a. <
b. <
Solve.
a. 4 hundredths + 8 hundredths = ______ hundredths = ______ tenth(s) _______ hundredths
a. 12 hundredths = 1 tenth 2 hundredths
Use estimation to choose the correct value for each expression.
a. 5.1 × 2
b. 4 × 8.93
a. 10
b. 36
32.1 × 10 = ___________________
321
Write the following in exponential form and as a multiplication sentence using only 10 as a factor
(e.g., 100 = 102 = 10 × 10).
a. 1,000 = ______________ = ______________
b. 100 × 100 = ______________ = ______________
a. 103 = 10 x 10 x 10
b. 104 = 10 x 10 x 10 x 10
Arrange the numbers in decreasing order.
76.342
76.332
76.232
76.343
76.343
76.342
76.332
76.232
Subtract.
1.7 – 0.8 = ___tenths – ______tenths = ____tenths =__________
17 tenths - 8 tenths= 9 tenths = 0.9
Complete the sentences with the correct number of units, and then complete the equation.
a. 2 groups of ____ tenths is 1.8. 1.8 ÷ 2 =
b. 4 groups of ___ hundredths is 0.32. 0.32 ÷ 4 =
c. 7 groups of _____thousandths is 0.021. 0.021 ÷ 7 =
a. 9 tenths = 0.9
b. 32 hundredths = 0.08
c. 21 thousandths = 0.003
684 ÷ 1,000 = ____________
0.684
Write the following in standard form (e.g., 4 × 102 = 400).
a. 3 × 102 = ______________
b. 800 ÷ 103 = ______________
a. 300
b. 0.8
Label the number lines, and circle the rounded value.
8.546
a. hundredths
b. tens
a. 8.55
b. 10
Subtract vertically, showing all work.
a. 84.637 – 28.56 =
a. 56.077
Draw place value disks on the place value chart to solve. Show each step using the standard algorithm.
5.372 ÷ 2 =
Ms. Manfredi will check your drawing in your place value chart
2. 686
6.671 × 100 = ____________
667.1
Convert using an equation with an exponent.
a. 2 meters to centimeters 2 m = ________ cm _________________________
b. 40 millimeters to meters 40 mm = ________ m
a. 200 cm
b. 0.04
Round the quantity to the given place value. Draw number lines to explain your thinking. Circle the rounded value on the number line.
a. 13.989 to the nearest tenth
b. 382.993 to nearest hundredth
a. 14
b. 382.99
Subtract vertically, showing all work.
a. 7 – 0.35 =
a. 6.65
a. Draw place value disks on the place value chart to solve. Show each step in the standard algorithm.
0.9 ÷ 4 = _______
Solve using the standard algorithm.
9.8 ÷ 5 =
a. 0.225
b. 1.96