In this Grade 4 Eureka Math lesson from Chapter 2, students practice finding 1 thousand, 10 thousand, and 100 thousand more and less than a given number using place value charts and number disks. Students build fluency with multi-digit numbers up to the hundred thousands place by identifying how specific units change when adding or subtracting these amounts. The lesson connects skip-counting, expanded form, and place value reasoning to deepen students' understanding of comparing multi-digit whole numbers.
Section 1
Mentally Find 1,000, 10,000, or 100,000 More or Less
To find a number that is , , or more or less than a given number, identify the digit in the corresponding place value (thousands, ten thousands, or hundred thousands). Increase the digit by 1 to find the number that is more, or decrease it by 1 to find the number that is less.
Section 2
Regrouping Across Place Values
When adding results in a value of 10 in a place, that place becomes 0 and we add 1 to the next higher place value (carrying over). When subtracting from a 0, we borrow from the next higher place value, which may require regrouping across multiple places.
Section 3
Find Missing Numbers in a Pattern
To find a missing number in a sequence, first determine the rule of the pattern by finding the difference between two consecutive numbers. Then, apply this rule by adding or subtracting from a known number to find the unknown term.
Fill in the blank: .
Fill in the blank: .
Fill in the blank: .
This skill involves analyzing a sequence of numbers to find the pattern, which could be adding or subtracting 1,000, 10,000, or 100,000. Once you identify the rule, you can find a missing number that is inside the sequence. This requires applying the rule forwards from the number before the blank or backwards from the number after the blank. This strengthens your understanding of place value and number relationships.
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Section 1
Mentally Find 1,000, 10,000, or 100,000 More or Less
To find a number that is , , or more or less than a given number, identify the digit in the corresponding place value (thousands, ten thousands, or hundred thousands). Increase the digit by 1 to find the number that is more, or decrease it by 1 to find the number that is less.
Section 2
Regrouping Across Place Values
When adding results in a value of 10 in a place, that place becomes 0 and we add 1 to the next higher place value (carrying over). When subtracting from a 0, we borrow from the next higher place value, which may require regrouping across multiple places.
Section 3
Find Missing Numbers in a Pattern
To find a missing number in a sequence, first determine the rule of the pattern by finding the difference between two consecutive numbers. Then, apply this rule by adding or subtracting from a known number to find the unknown term.
Fill in the blank: .
Fill in the blank: .
Fill in the blank: .
This skill involves analyzing a sequence of numbers to find the pattern, which could be adding or subtracting 1,000, 10,000, or 100,000. Once you identify the rule, you can find a missing number that is inside the sequence. This requires applying the rule forwards from the number before the blank or backwards from the number after the blank. This strengthens your understanding of place value and number relationships.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter