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Tutorial Center • Quezon City

Addition in Expanded Form

DepEd MATATAG Grade 1 Math • Set A: Vertical Place Value Grids
Score / 6
Name:
Grade & Section:
Date:
Direction Break each number into Tens and Ones in vertical format. Add the columns, then write the total sum.
💡 Vertical Expanded Model: Align Tens and Ones:
  23 + 45
68
= 20 + 3 = 40 + 5
= 60 + 8 = 68
1
Tens Ones
 23
=
  +  
+45
=
  +  
 
=
  +  
2
Tens Ones
 31
=
  +  
+56
=
  +  
 
=
  +  
3
Tens Ones
 42
=
  +  
+37
=
  +  
 
=
  +  
4
Tens Ones
 64
=
  +  
+23
=
  +  
 
=
  +  
5
Tens Ones
 53
=
  +  
+24
=
  +  
 
=
  +  
6
Tens Ones
 35
=
  +  
+52
=
  +  
 
=
  +  
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Kiddie Blocks
Tutorial Center • Quezon City

Addition in Expanded Form

DepEd MATATAG Grade 1 Math • Set B: Place Value Blocks in Vertical Form
Score / 6
Name:
Grade & Section:
Date:
Direction Read the Tens & Ones blocks for each number. Write and add in vertical expanded format.
💡 Base-10 Blocks Model: [4 Tens, 3 Ones] + [2 Tens, 4 Ones]:
  43 + 24
67
= 40 + 3 = 20 + 4
= 60 + 7 = 67
7
4 Tens, 3 Ones + 2 Tens, 4 Ones
 43
=
  +  
+24
=
  +  
 
=
  +  
8
5 Tens, 2 Ones + 3 Tens, 5 Ones
 52
=
  +  
+35
=
  +  
 
=
  +  
9
3 Tens, 6 Ones + 4 Tens, 2 Ones
 36
=
  +  
+42
=
  +  
 
=
  +  
10
6 Tens, 1 One + 2 Tens, 6 Ones
 61
=
  +  
+26
=
  +  
 
=
  +  
11
2 Tens, 5 Ones + 5 Tens, 3 Ones
 25
=
  +  
+53
=
  +  
 
=
  +  
12
7 Tens, 2 Ones + 1 Ten, 6 Ones
 72
=
  +  
+16
=
  +  
 
=
  +  
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Kiddie Blocks
Tutorial Center • Quezon City

Addition in Expanded Form

DepEd MATATAG Grade 1 Math • Set C: Story Problems (Vertical Format)
Score / 4
Name:
Grade & Section:
Date:
Direction Read each word problem. Fill in the numbers and find the total sum using the vertical expanded form grid.
13 Art Class Crayons
Teacher Lea has 33 blue crayons and 45 red crayons. How many crayons does Teacher Lea have in all?
 33
=
  +  
+45
=
  +  
 
=
  +  
14 Bulacan Farm Harvest
Mang Pedro harvested 54 yellow corn ears and 31 white corn ears. How many sweet corn ears were harvested altogether?
 54
=
  +  
+31
=
  +  
 
=
  +  
15 Fruit Stall Sale
Ate Gina sold 42 sweet papayas and 25 ripe avocados at the market. What is the total count of fruits sold?
 42
=
  +  
+25
=
  +  
 
=
  +  
16 School Library Books
The Grade 1 classroom received 51 picture storybooks and 36 counting books. How many books were received in total?
 51
=
  +  
+36
=
  +  
 
=
  +  
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Teacher & Parent Solution Key

Grade 1 Mathematics • Addition in Expanded Form (Vertical Format Edition)
Official Answer Key
DepEd MATATAG Aligned
Page 1: Set A Solutions Vertical Place Value Grids
1. 23 + 45
(20 + 3) + (40 + 5) = 60 + 8
Sum: 68
2. 31 + 56
(30 + 1) + (50 + 6) = 80 + 7
Sum: 87
3. 42 + 37
(40 + 2) + (30 + 7) = 70 + 9
Sum: 79
4. 64 + 23
(60 + 4) + (20 + 3) = 80 + 7
Sum: 87
5. 53 + 24
(50 + 3) + (20 + 4) = 70 + 7
Sum: 77
6. 35 + 52
(30 + 5) + (50 + 2) = 80 + 7
Sum: 87
Page 2: Set B Solutions Base-10 Blocks to Vertical Grids
7. 43 + 24
(40 + 3) + (20 + 4) = 60 + 7
Sum: 67
8. 52 + 35
(50 + 2) + (30 + 5) = 80 + 7
Sum: 87
9. 36 + 42
(30 + 6) + (40 + 2) = 70 + 8
Sum: 78
10. 61 + 26
(60 + 1) + (20 + 6) = 80 + 7
Sum: 87
11. 25 + 53
(20 + 5) + (50 + 3) = 70 + 8
Sum: 78
12. 72 + 16
(70 + 2) + (10 + 6) = 80 + 8
Sum: 88
Page 3: Set C Word Problems Solutions Vertical Grids in Real Contexts
13. Teacher Lea (Crayons):
33 = 30 + 3 | 45 = 40 + 5 | Sum: 70 + 8
Answer: 78 crayons
14. Mang Pedro (Sweet Corn):
54 = 50 + 4 | 31 = 30 + 1 | Sum: 80 + 5
Answer: 85 corn ears
15. Ate Gina (Fruits):
42 = 40 + 2 | 25 = 20 + 5 | Sum: 60 + 7
Answer: 67 fruits
16. Library Books (Stories):
51 = 50 + 1 | 36 = 30 + 6 | Sum: 80 + 7
Answer: 87 books
MATATAG Mastery Diagnostic Rubric & Remediation Tips
Performance Level Observed Student Understanding Recommended Teacher/Tutor Next Steps
Mastery (14-16 pts) Accurately aligns addends in vertical columns, decomposes into tens and ones without misalignment, and adds sums fluently. Advance to 3-digit vertical expanded form or introduce horizontal mental decomposition.
Developing (10-13 pts) Understands vertical column alignment but occasionally misaligns tens into the ones box or makes single-digit addition slips. Use color-coded column dividers (blue for tens, red for ones) to reinforce strict vertical alignment.
Needs Support (<10 pts) Struggles to see that vertical columns represent place values (e.g., adds 2 + 4 as 6 ones instead of 60). Use bundled popsicle sticks (bundles of 10) placed directly into vertical columns before writing on paper.