unit 2 lesson 8 part 1: rounding to the nearest thousand copyright © 2009 kelly mott
TRANSCRIPT
Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand
Copyright © 2009 Kelly Mott
Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand
Copyright © 2009 Kelly Mott
Part 1: Rounding with a Number Line
Copyright © 2009 Kelly Mott
What is 1,300 rounded to the nearest thousand?• Find 1,300 on the number line. Put a dot.• Is 1,300 closer to 1,000 or 2,000? ___________• Answer: 1,300 rounded to the nearest
thousand is _____________________
1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000
Copyright © 2009 Kelly Mott
Round to the Nearest Thousand
What is 1,800 rounded to the nearest thousand?• Find 1,800 on the number line. Put a dot.• Is 1,800 closer to 1,000 or 2,000? ___________• Answer: 1,800 rounded to the nearest
thousand is _____________________
1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000
Copyright © 2009 Kelly Mott
Round to the Nearest Thousand
What is 1,500 rounded to the nearest thousand?• Find 1,500 on the number line. Put a dot.• Is 1,500 closer to 1,000 or 2,000? ___________• Answer: 1,500 rounded to the nearest
thousand is _____________________
1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000
Copyright © 2009 Kelly Mott
Round to the Nearest Thousand
*Hint: When we have 5 or more, we round up.
Copyright © 2009 Kelly Mott
Part 2: Rounding without a Number Line
Copyright © 2009 Kelly Mott
Steps to Round a Number:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
2,672
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 1:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
4,833
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 2 :STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
6,117
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 3:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
7,438
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 4 :STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
3,872
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 5:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
5,306
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 6:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
1,902
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 7:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
8,299
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 8:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
2,192
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 9:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
6,852
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 10:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
7,096
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 11:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
8,584
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 12:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
1,199
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 13 :STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
2,970
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 14:STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
3,888
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Practice # 15 :STEPS:1. Underline the place you are
rounding to.2. Circle the number to the right.
3. If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same.
4. If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number.
5. Every number to the right of the underlined number becomes a zero.
Copyright © 2009 Kelly Mott
Round to the nearest thousand:
9,104
Hint for the Circled Number:4 or less just ignore.5 or more, add 1 more.
Copyright © 2009 Kelly Mott
Does this make sense?
Copyright © 2009 Kelly Mott
HOMEWORKTeacher Worksheet: Rounding to Nearest Thousand WorksheetMath Steps Pages: noneRe-teach Page: none
Copyright © 2009 Kelly Mott
You can use the Rounding Pyramid:
51
2
84
0
93
76
1. Underlined number rounds up one
2. Add the zeros
1. Underlined number stays the same
2. Add the zeros
Copyright © 2009 Kelly Mott