In 2nd grade addition worksheet we will solve the problems on addition of 2-digit numbers (without Regrouping), addition by regrouping, regrouping tens to hundreds, estimating the sum and word problems on addition.
1. Regroup and write the number.
(i) 3 hundreds + 15 tens = _____
(ii) 5 hundreds + 11 tens = _____
(iii) 6 hundreds + 16 tens = _____
(iv) 7 hundreds + 20 ones = _____
2. One hundred is equal to _____ tens.
3. 23 + 52 + = 52 + _____
4. 99 + 0 = _____
5. Fill in the boxes.
(i) 12 + _____ = 12
(ii) 55 + 1 = _____
(iii) 68 + _____ = 69
(iv) 0 + _____ = 80
(v) _____ + 1 = 99
(vi) _____ + 1 = 89
6. Add the following 2-digit numbers without carrying.
(i) 18 + 10
(ii) 14+3
(iii) 13 + 15
(iv) 26 + 32
(v) 34 + 65
(vi) 53 + 34
(vii) 48 +41
(viii) 63 + 24
(ix) 25 + 16
(x) 56 + 19
(xi) 18 + 34
(xii) 46 + 12
(xiii) 57 +27
(xiv) 48 + 12
(xv) 68 + 15
7. Add the following with carry over.
(i) 59 + 22
(ii) 60 + 50
(iii) 78 + 64
(iv) 79 + 22
(v) 80 + 45
(vi) 34 + 49
(vii) 25 + 79
(viii) 82 + 99
(ix) 105 + 201
(x) 509 + 120
(xi) 561 + 232
(xii) 678 + 111
8. Write T for true and F for false.
(i) 13 + 14 = 14 + 13
(ii) 60 + 10 = 70
(iii) 17 tens = 1 hundred + 7 tens
(iv) 5 tens + 5 tens = 2 hundreds
9. Fill in the blanks.
(i) 10 + 20 + 30 = _____
(ii) 10 more than 100 = _____
10. Regroup and add the following.
(i) 3 tens + 13 ones = _____ tens + _____ ones
(ii) 5 tens + 21 ones = _____ tens + _____ ones
(iii) 4 tens + 18 ones = _____ tens + _____ ones
(iv) 2 tens + 32 ones = _____ tens + _____ ones
11. Add the following.
(i) 25 + 3 = _____
(ii) 32 + 4 = _____
(iii) 43 + 16 = _____
(iv) 62 + 33 = _____
(v) 46 + 6 = _____
(vi) 57 + 5 = _____
(vii) 71 + 33 = _____
(viii) 95 + 12 = _____
12. In a bus there were 110 men, 20 women and 3 children. How many passengers were there in total?
13. Nairitee has 96 coins and Nitheeya has 23 conis. How many coints do they have altogether?
14. 53 boys and 45 girls study in Class 2. How many students study in Class 2 altogether?
15. Robert has three marble boxes. The first box has 82 marbles, the second has 48 marbles and the third has 57 marbles. How many marbles does Robert have in all?
16. There were 28 fish in a big water tank. 43 more fish were put in the tank. How many fish are there in all now?
17. A fruit seller has 94 raw guavas and 58 ripe guavas. How many guavas does he have in all?
18. Sarah scored 154 runs in the first cricket match and 132 runs in the second. How many runs did she score in all?
19. Complete the following table.
Addition |
Mental calculation |
Add 10 |
Estimate |
Actual sum |
29 + 54 |
2 tens + 5 tens |
80 |
about 80 |
83 |
66 + 24 |
_____________ |
____ |
______ |
______ |
35 + 38 |
_____________ |
____ |
______ |
______ |
Patterns Based on Addition Properties
20. Draw/Colour the shapes in the order of the numbers being added.
21. See the pattern and complete the addition of 10 to the following numbers.
11 + 10 = 21 23 + 10 = 33 36 + 10 = 46 40 + 10 = 50 52 + 10 = 62 67 + 10 = 77 75 + 10 = 85 89 + 10 = 99 |
16 + 10 = 22 + 10 = 39 + 10 = 43 + 10 = 54 + 10 = 61 + 10= 77 + 10 = 85 + 10 = |
22. Find the sum and fill the blanks when you know the sum of the ones.
Given Given Given Given Given |
2 + 3 = 5 4 + 3 = 7 3 + 5 = 8 1 + 5 = 6 2 + 7 = 9 |
12 + 3 = 15 and 22 + 3 = 25 24 + 3 = 27 and 34 + 3 = 37 13 + 5 = 18 and 23 + 5 = 28 31 + 5 = 36 and 51 + 5 = 56 22 + 7 = 29 and 42 + 7 = 49 |
So, 32 + 3 = ___ So, 44 + 3 = ___ So, 33 + 5 = ___ So, 81 + 5 = ___ So, 62 + 7 = ___ |
Answers
1. (i) 450
(ii) 610
(iii) 760
(iv) 900
2. 10
3. 23
4. 99
5. (i) 0
(ii) 56
(iii) 1
(iv) 80
(v) 98
(vi) 88
6. (i) 28
(ii) 17
(iii) 28
(iv) 58
(v) 99
(vi) 87
(vii) 89
(viii) 87
(ix) 41
(x) 75
(xi) 52
(xii) 58
(xiii) 84
(xiv) 60
(xv) 83
7. (i) 81
(ii) 110
(iii) 142
(iv) 101
(v) 125
(vi) 83
(vii) 104
(viii) 181
(ix) 306
(x) 629
(xi) 793
(xii) 789
8. (i) T
(ii) T
(iii) T
(iv) F
9. (i) 60
(ii) 110
(iii) 160
(iv) 50
10. (i) 4 tens + 3 ones; 43
(ii) 7 tens + 1 ones; 71
(iii) 5 tens + 8 ones; 58
(iv) 5 tens + 2 ones; 52
11. (i) 28
(ii) 36
(iii) 59
(iv) 95
(v) 52
(vi) 62
(vii) 104
(viii) 107
12. 133
13. 119
14. 98
15. 187
16. 71
17. 152
18. 286
21.
16 + 10 = 26
22 + 10 = 32
39 + 10 = 49
43 + 10 = 53
54 + 10 = 64
61 + 10 = 71
77 + 10 = 87
85 + 10 = 95
22.
So, 32 + 3 = 35
So, 44 + 3 = 47
So, 33 + 5 = 38
So, 81 + 5 = 86
So, 62 + 7 = 69
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