Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
Uploaded bychubbychubz1
PPTX, PDF149 views

Comprehensive 4th Grade Mathematics: Estimation, Addition, and Subtraction of Large Numbers

Covers comparing, estimating sums and differences, addition and subtraction up to 1,000,000 with and without regrouping, including word problems and assessments for 4th grade students.

Education◦
Download to read offline
DAY 1 MATHEMATICS 4 TERM 1 WEEK 7
A. Directions: Write the symbols >, <, or = on the space between the numbers to compare their value. R E V I E W @ @ P R E - L E S S O N
1. 210 000 _____ 230 000 2. 14 156 _____ 15 156 3. 175 333 _____ 175 333 4. 90 546 _____ 90 654 5. 293 102 _____ 293 120 R E V I E W @ @ P R E - L E S S O N
B. Can you solve the following? 1. 35, 231 + 24, 567 = 2. 46, 700 + 45, 234 = 3. 190, 222 + 78, 021 = 4. 89, 765 – 76, 001 = 5. 187, 123 – 87, 123 = @ @ P R E - L E S S O N
ESTIMATE THE SUM AND DIFFERENCE OF TWO 5- TO 6-DIGIT NUMBERS
1. Identify the numbers: Let's say we have 58,736 and 32,489. ESTIMATING THE SUM
2. Round each number to the nearest large place value: For large numbers, this usually means rounding to the nearest ten thousand or hundred thousand. ESTIMATING THE SUM
 58,736 rounds to 60,000 (nearest ten thousand).  32,489 rounds to 30,000 (nearest ten thousand). ESTIMATING THE SUM
3. Add the rounded numbers: 60,000 + 30,000 = 90,000. ESTIMATING THE SUM
Example 1: • Original numbers: 58,736 and 32,489. • Rounded numbers: 60,000 and 30,000. • Estimated sum: 60,000 + 30,000 90,000. ESTIMATING THE SUM
Example 2: • Original numbers: 142,356 and 87,243. • Rounded numbers: 140,000 and 90,000 (rounded to the nearest ten thousand). • Estimated sum: 140,000 + 90,000 = 230,000. ESTIMATING THE SUM
1. Identify the numbers: Let's use 58,736 and 32,489 again. 2. Round each number to the nearest large place value: o 58,736 rounds to 60,000. o 32,489 rounds to 30,000. ESTIMATING THE DIFFERENCE
3. Subtract the rounded numbers: • 60,000 - 30,000 = 30,000. ESTIMATING THE DIFFERENCE
Example 1: • Original numbers: 58,736 and 32,489. • Rounded numbers: 60,000 and 30,000. • Estimated difference: 60,000 - 30,000 = 30,000. ESTIMATING THE DIFFERENCE
Example 2: • Original numbers: 142,356 and 87,243. • Rounded numbers: 140,000 and 90,000 (rounded to the nearest ten thousand). • Estimated difference: 140,000 - 90,000 = 50,000. ESTIMATING THE DIFFERENCE
Directions: Estimate the sum of the following. 1. 45, 532 2. 78, 345 + 26, 453 + 56, 453 A C T I V I T Y 1 @ @ A S S E S S M E N T
3. 135, 123 4. 821, 776 + 87, 214 + 243, 234 5. 895, 322 + 345, 789 A C T I V I T Y 1 @ @ A S S E S S M E N T
Directions: Estimate the sum of the following. 1. 45, 532 2. 78, 345 - 26, 453 - 56, 453 @ @ E X T E N D E D
3. 135, 123 4. 821, 776 - 87, 214 - 243, 234 5. 895, 322 - 345, 789 @ @ E X T E N D E D
DAY 2 MATHEMATICS 4 TERM 1 WEEK 7
Directions: Estimate the sum of the following. 1. 58, 768 + 56, 218 2. 88, 340 + 67, 002 R E V I E W @ @ P R E - L E S S O N
3. 246, 978 + 17, 189 4. 876, 543 + 333, 444 R E V I E W @ @ P R E - L E S S O N
5. 888, 888 + 222, 223 R E V I E W @ @ P R E - L E S S O N
Directions: Estimate the sum of the following. 1. 58, 768 - 56, 218 2. 88, 340 - 67, 002 @ @ P R E - L E S S O N
3. 246, 978 + 17, 189 4. 876, 543 + 333, 444 @ @ P R E - L E S S O N
5. 888, 888 + 222, 223 @ @ P R E - L E S S O N
ESTIMATE THE SUM AND DIFFERENCE OF TWO 5- TO 6-DIGIT NUMBERS
1. Identify the numbers: Let's say we have 58,736 and 32,489. ESTIMATING THE SUM
2. Round each number to the nearest large place value: For large numbers, this usually means rounding to the nearest ten thousand or hundred thousand. ESTIMATING THE SUM
 58,736 rounds to 60,000 (nearest ten thousand).  32,489 rounds to 30,000 (nearest ten thousand). ESTIMATING THE SUM
3. Add the rounded numbers: 60,000 + 30,000 = 90,000. ESTIMATING THE SUM
Example 1: • Original numbers: 58,736 and 32,489. • Rounded numbers: 60,000 and 30,000. • Estimated sum: 60,000 + 30,000 90,000. ESTIMATING THE SUM
Example 2: • Original numbers: 142,356 and 87,243. • Rounded numbers: 140,000 and 90,000 (rounded to the nearest ten thousand). • Estimated sum: 140,000 + 90,000 = 230,000. ESTIMATING THE SUM
1. Identify the numbers: Let's use 58,736 and 32,489 again. 2. Round each number to the nearest large place value: o 58,736 rounds to 60,000. o 32,489 rounds to 30,000. ESTIMATING THE DIFFERENCE
3. Subtract the rounded numbers: • 60,000 - 30,000 = 30,000. ESTIMATING THE DIFFERENCE
Example 1: • Original numbers: 58,736 and 32,489. • Rounded numbers: 60,000 and 30,000. • Estimated difference: 60,000 - 30,000 = 30,000. ESTIMATING THE DIFFERENCE
Example 2: • Original numbers: 142,356 and 87,243. • Rounded numbers: 140,000 and 90,000 (rounded to the nearest ten thousand). • Estimated difference: 140,000 - 90,000 = 50,000. ESTIMATING THE DIFFERENCE
Directions: Estimate the total. 1) 45,783 + 67,234 2) 89,456 + 12,345 3) 123,456 + 78,910 4) 256,789 + 143,210 5) 97,854 + 32,765 A C T I V I T Y 2 @ @ A S S E S S M E N T
Directions: Estimate the difference. 1) 89,543 - 56,789 2) 123,456 - 78,912 3) 234,567 - 123,456 4) 97,865 - 65,432 5) 345,678 - 234,567 @ @ E X T E N D E D
DAY 3 MATHEMATICS 4 TERM 1 WEEK 7
Directions: Read the problem. Mrs. Javier went to a grocery store. She bought the items below. Estimate how much change Mrs. Javier will receive if she pays 100 000 bill for each. ₱ @ @ P R E - L E S S O N
@ @ P R E - L E S S O N
ADDING AND SUBTRACTING NUMBERS UP TO 1,000,000
1. Addition (Sums up to 1,000,000) • Without Regrouping: This happens when the sum of the digits in a specific column is 9 or less. You simply write the sum below the line. R E V I E W @ @ D I S C U S S I O N
• With Regrouping (Carrying): When the sum of a column is 10 or more, you write the ones digit of that sum in the answer space and "carry" the tens digit to the next column on the left. R E V I E W @ @ D I S C U S S I O N
2. Subtraction (Numbers less than 1,000,000) • Without Regrouping: This happens when the top digit (minuend) is larger than or equal to the bottom digit (subtrahend) in every column. R E V I E W @ @ D I S C U S S I O N
With Regrouping (Borrowing): When the top digit is smaller than the bottom digit, you must "borrow" 1 from the column to the left. This increases the value of your current digit by 10. R E V I E W @ @ D I S C U S S I O N
A. Directions: Find the sum for each item. Some problems will require regrouping (carrying), while others will not. A C T I V I T Y 4 @ @ A S S E S S M E N T
1. 523,140 + 264,728 2. 675,392 + 128,409 3. 412,005 + 387,994 4. 256,880 + 443,119 5. 834,567 + 165,432 A C T I V I T Y 4 @ @ A S S E S S M E N T
B. Directions: Subtract the numbers below. Watch out for problems that require "borrowing" across multiple columns. A C T I V I T Y 4 @ @ A S S E S S M E N T
1. 895,672 - 453,210 2. 712,400 - 356,185 3. 999,999 - 123,456 4. 600,000 - 247,315 5. 543,210 - 231,000 A C T I V I T Y 4 @ @ A S S E S S M E N T
Directions: Carefully solve each equation by performing the indicated operation. 1. 642,850 + 235,149 = 2. 958,600 - 426,300 = 3. 517,392 + 382,608 = 4. 800,000 - 345,670 = 5. 456,712 + 123,288 = @ @ E X T E N D E D
DAY 4 MATHEMATICS 4 TERM 1 WEEK 7
Directions: Carefully solve each equation by performing the indicated operation. 1. 875,400 - 324,100 = 2. 249,550 + 610,450 = 3. 900,000 - 567,825 = @ @ P R E - L E S S O N
4. 156,234 + 743,766 = 5. A farm harvested 680,500 kilos of rice. They sold 425,300 kilos to a local trader. How many kilos of rice are left in the barn? @ @ P R E - L E S S O N
ADDING AND SUBTRACTING NUMBERS UP TO 1,000,000
1. Addition (Sums up to 1,000,000) • Without Regrouping: This happens when the sum of the digits in a specific column is 9 or less. You simply write the sum below the line. R E V I E W @ @ D I S C U S S I O N
• With Regrouping (Carrying): When the sum of a column is 10 or more, you write the ones digit of that sum in the answer space and "carry" the tens digit to the next column on the left. R E V I E W @ @ D I S C U S S I O N
2. Subtraction (Numbers less than 1,000,000) • Without Regrouping: This happens when the top digit (minuend) is larger than or equal to the bottom digit (subtrahend) in every column. R E V I E W @ @ D I S C U S S I O N
With Regrouping (Borrowing): When the top digit is smaller than the bottom digit, you must "borrow" 1 from the column to the left. This increases the value of your current digit by 10. R E V I E W @ @ D I S C U S S I O N
Directions: Solve each problem and determine if the provided answer is True or False. If it is false, provide the correct sum or difference. A C T I V I T Y 4 @ @ A S S E S S M E N T
1. 450,000 + 150,000 = 600,000 (______) 2. 800,000 - 250,000 = 650,000 (______) 3. 312,450 + 212,450 = 524,900 (______) 4. 920,000 - 120,000 = 800,000(______) 5. 560,700 + 439,300 = 1,000,000 (______) A C T I V I T Y 4 @ @ A S S E S S M E N T
Directions: Read each item closely. Solve the addition and subtraction problems. For items involving word problems, write the mathematical sentence first before solving. @ @ E X T E N D E D
1. Find the sum: 724,150 + 185,950 2. Find the difference: 672,405 - 281,560 @ @ E X T E N D E D
3. A donation drive collected 412,300 pesos in the morning and 387,700 pesos in the afternoon. How much was the total collection? @ @ E X T E N D E D
4. A bookstore has 950,000 pages of bond paper. If they used 562,400 pages for printing modules, how many pages are left? 5. Challenge: 1,000,000 - 450,500 @ @ E X T E N D E D