Math 4
Quarter 1_Week 2_Day 1
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Learning Competencies:
Rounds numbers to the nearest
thousand and ten thousand
(M4NS-Ib-5.2)
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Drill
Give the place value of the underlined digit.
a. 368
d. 1 425
Department of Education
Schools Division of NEGROS ORIENTAL
b. 1 482
e. 936
c. 745
MATHEMATICS
Review:
Write your answers on your “Show- Me-Boards”.
A. If we skip count by 10s,
1. 28 is nearer to ______.
2. 42 is nearer to ______.
3. 61 is nearer to ______.
B. If we skip count by 100s,
1. 121 is nearer to _______ than______.
2. 389 is nearer to _______ than______.
3. 512 is nearer to _______ than______.
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Read this problem.
There are 79 582 residents in the
Municipality of San Jose and 96 454
residents in Bais City who are benefiting
from Clean and Green Program of the
government.
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
How do the numbers 79 582 and 96 454 have been
rounded?
Number
Nearest Hundreds Nearest Thousands
79 582
79 600
80 000
96 454
96 500
96 000
a. Round 79 582 to the nearest hundred, thousands.
b. Round 96 454 to the nearest thousand.
c. Can you explain why?
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Here is a number line labeled from 2000 to 3000.
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
Ask:
a.Find 2110, to what thousand is it closer to?
b.Find 2500. Where is it located?
c.Find 2678, to what number is it closer?
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Group Activity:
Group 1: Round the numbers to the nearest
thousand and ten thousand.
Number
Round to the Nearest
Thousand
Round to the Nearest
Thousand
42 765
514 197
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Group 2 –Read & answer the problem.
Jorge harvested 4 389 kilograms of
mangoes. About how many kilograms of
mangoes were harvested?
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
n
PRACTICE TEST
A. Round off to the nearest thousands.
1. 21465 =___________
2. 48723 =___________
3. 67523 =___________
3. 21356 =___________
4. 90903 =___________
B. Round off to the nearest ten thousands.
1. 38124 =___________
2. 81081 =___________
3. 56910 =___________
Department of Education
Schools Division of NEGROS ORIENTAL
4. 94207 =___________
5. 28219 =___________
MATHEMATICS
How do we round numbers?
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
To round numbers, identify the
rounding digit, round up (add 1) if the
digit to its right is 5 or greater . Round
down (retain the digit ) if it is less than 5.
Then change all the digits to the right of
the rounding place to zeros.
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS
Evaluation:
A. Round the following to the nearest thousands.
1. 98 345 ________ 4. 75 345 ________
2. 67 452 ________ 5. 62 490 ________
3. 8 712 ________
B. Round the following to the nearest ten thousands.
1. 12 345 ________ 4. 15 942 ________
2. 57 456 ________ 5. 73 899 ________
3. 78 710 ________
Department of Education
Schools Division of NEGROS ORIENTAL
MATHEMATICS