Grade 4 Math Notes – Module 1 Lesson 1

Practice: 1. 10 × 7 hundreds = ______ → standard form ______ (Use a place value chart or disks to help.)

• 10 × 7 hundreds = 70 hundreds → standard form 7,000

• 10 × 7 hundreds = 17 hundreds → standard form 1,700

• 10 × 7 hundreds = 700 hundreds → standard form 70,000

• 10 × 7 hundreds = 77 hundreds → standard form 7,700

Practice: 2. 10 × 15,309 = ______ → standard form ______ (Use a place value chart or disks to help.)

• 10 × 15,309 = 153,090 → standard form 153,090

• 10 × 15,309 = 150,309 → standard form 150,309

• 10 × 15,309 = 1,530,900 → standard form 1,530,900

• 10 × 15,309 = 15,309 → standard form 15,309

Practice: 3. 10 × 153,090 = ______ → standard form ______ (Use a place value chart or disks to help.)

• 10 × 153,090 = 1,530,900 → standard form 1,530,900

• 10 × 153,090 = 153,090 → standard form 153,090

• 10 × 153,090 = 15,309 → standard form 15,309

• 10 × 153,090 = 1,530,090 → standard form 1,530,090

Application Problem: Lee has 15,000 thousands; Gary has 150,000 hundreds. Use the place value chart to compare their amounts. Who has more? Write it in standard form: ______

• Gary has more. 150,000 hundreds = 15,000,000; 15,000 thousands = 15,000,000. They are equal.

• Lee has more. 15,000 thousands = 1,500,000; Gary has 150,000 hundreds = 1,500,000. They are equal.

• Gary has more. 150,000 hundreds = 1,500,000; Lee has 15,000 thousands = 15,000,000. Lee has more.

• Lee has more. 15,000 thousands = 15,000,000; Gary has 150,000 hundreds = 1,500,000. Lee has more.

Exit Ticket: Write the value of each: 10 × 4 tens = ______

• 400

• 40

• 4,000

• 14

Exit Ticket: Write the value of each: 10 × 5 thousands = ______

• 50,000

• 5,000

• 500,000

• 15,000

Multiplying a number by 10 moves each digit one place to the left and increases its value tenfold.

• It moves each digit one place to the left and increases its value tenfold.

• It moves each digit one place to the right and decreases its value tenfold.

• It does not change the place or value of any digit.

• It moves each digit two places to the left and increases its value hundredfold.

When multiplying by 10, digits move in which direction?

• To the left

• To the right

• They stay in the same place

• They disappear

Using the place-value chart is a way to check your answer by:

• Breaking down the number into its place values to verify each digit's value.

• Adding random numbers to see if the answer changes.

• Ignoring the digits and focusing only on the total sum.

• Guessing the answer without checking the digits.

10 × 3 hundreds is equal to:

• 3,000

• 300

• 30,000

• 3,100