8. I. Write the numbers as illustrated in the
model.
3 234 2 046 2 306
4 113
9. Number Place
Value
Value Number Place Value Value
1. 2 793 4. 60 439
2. 3 748 5. 2 406
3. 5 709 6. 376 678
IIA. Give the place value and value of the underlined digit.
10. Number Place Value Value Number Place Value Value
1. 2 793 hundreds 700
4. 60 439 tens 30
2. 3 748 thousands 3 000
5. 2 406 thousands 2 000
3. 5 709 hundreds 700
6. 376 678 ten
thousands
70 000
19. 1. What is the 7th letter of the word?
2. What is the 11th letter?
3. What is the letter 3rd from H?
4. What is the 13th letter?
5. P is the first letter, what about H? A? and C ?
V. Identifying Ordinal Numbers.
“PENTAHECTOGON” is a 500-sided polygon.
Look at the letters of the word
“PENTAHECTOGON” to answer the following:
E
G
T
N
H - Sixth
C - Eighth
A - Fifth
20. Estimated Sum Computed Sum
1. 845 + 761 800 + 800 = 1600 1606
2. 218 + 394
3. 167 + 407
4. 974 + 734
VI. Give the estimated sum before adding the numbers.
200 + 400 = 600
200 + 400 = 600
1000 + 700 = 1700
612
574
1708
21. Estimated Sum Computed Sum
5. 143 + 371+ 257
6. 384 +367 + 518
7. 4954 + 1720+ 6032
8. 8200 + 564 + 7737
VI. Give the estimated sum before adding the numbers.
100 + 400+300 = 800
400 + 400 + 500 = 1300
5000 + 2000 + 6000 = 1300
8000 + 600 + 8000 = 16 600
771
1 269
12 706
16 501
23. VII. Solve the following:
1. If 978 is decreased by 345, what is the
new number?
2. Give the biggest number and the smallest
number you can make using all the digits of
3591?
978 – 345 = 633
The biggest number is 9531
The smallest number is 1359
24. 3. In the number, 47,693 if 7 is removed, what is the
value of 4 in the new number?
From 47, 693, if 7 is removed,
the new number is 4693.
In 4693, the value of 4 is 4000.
25. 4. In the number, 2684 if 5 is inserted between
2 and 6, what will be its value?
In the number 2684, if 5 is inserted,
between 2 and 6, 2__684,
the new number is 25684.
Its value is 5000.
26. 5. Using 2,1,7 and 5, write the numbers
between 5000 and 7000 only.
6. There are 312 avocado seedlings and 196
Lemon seedlings given to Barangay 125 .
Estimate the sum of the seedlings.
5127
5172
5217
5271
5712
5721
Estimated sum:
312 + 196 = 300 + 200 = 500
28. In an ABC factory different types of toys are
manufactured. Given below is the number of
different types of toy vehicle made in a week.
Use the numbers given to answer the questions
below.
Type of Toy Number of
Toys
Type of Toy Number of
Toys
Bikes 2485 Lawn Mower 2050
Race Cars 1985 Police Trailer 1850
Fire Trucks 1560 School Bus 1485
29. 1. What is the sum of the number of toys made in a week?
Give your answer to nearest 10.
2. If 500 race cars are sold, then how many are left for sale?
3. Which toy has the most number?
30. 1. What is the sum of the number of toys made in a week?
Give your answer to nearest 10.
2485 + 1985 + 1560 = 6030
2050 + 1850 + 1485 = 5385
The sum of the toys made in a week is
6030 + 5385 = 11,415
It is 11, 410 to the nearest 10
31. 2. In two weeks how many toys can be produced by the ABC factory?
In a week , the ABC factory produced 11, 415 toys,
so in two weeks: 11,415 + 11, 415 = 22, 830 toys
32. 3. If 500 race cars are sold, then how many are left for sale?
4. Which toy has the most number at the start?
Since the total number of cars is 11,415,
We subtract 500 from it, that is 11415-500 = 10915
There are 10915 cars left for sale.
The Bikes has the most number.
33. 5. How many more fire trucks should be made in the factory to have 2000
pieces?
We subtract 1560 from 2000;
2000-1560 = 440
440 more fire trucks
should be made to have 2000 pieces
34. 6. If 5000 Lawn Mowers are needed, how many weeks will it take to
produce?
Since in a week time, 2050 Lawn Mowers are made, it will take three
(3) weeks to produce 5000 pieces.
Week 1 Week 2 Week 3
By the week 2050 2050 2050
Total 2050 4100 6150
35. 7. Mr. Win would like to buy all the police trailers produced in three weeks,
how many pieces will he get?
Week 1 Week 2 Week 3
By the week 1850 1850 1850
Total 1850 3700 5550
Mr. Win will get 5550 pieces police trailer- toys.