Third grade math worksheet on addition properties is great for practicing and testing the knowledge of the students on identifying the different properties.

1. Fill in the blanks:

(i) 64 + 53 = ? + 64

(ii) 365 + 427 = ? + 365

(iii) ? + 261 = 261 + 170

(iv) 765 + ? = 188 + 765

(v) 198 + 318 = ? + 198

(vi) ? + 421 = ? + 583

(vii) 2149 + ? = 3254 + 2149

(viii) ? + 6253 = ? + 1247

(ix) 367 + 1427 + 278 = ? + 278 + 367

(x) 3725 + 2508 + ? = 2982 + 2508 + 3725

(xi) (4014 + 1572) + 1914 = 4014 + (? + 1914)

(xii) (7528 + ?) + 1575 = 7528 + (2524 + 1575)

(xiii) 33 + (39 + 45) = (? + 39) + 45 = (33 + 45) + ?

(xiv) 15 + 16 + 17 = (15 + 16) + ? = (16 + 17) + ? = (17 + 15) + ?

(xv) 135 + 240 + 345 = ? + (240 + 345) = (240 + 135) + ?

(i) 365 + 0 = ?

(ii) 0 + 1350 = ?

(iii) 1578 + ? = 1578

(iv) ? + 1478 = 1478

(v) 79 + 1 = ?

(vi) 173 + ? = 174

(vii) ? + 1 = 1460

(viii) 1 + 3780 = ?

(ix) 3060 + ? = 3061

(x) ? + 2508 = 2508

3. What is the additive element of a number?

4. Write true or false against the following statements:

(i) When zero is added to any number, the sum is the number.

(ii) When 1 is added to any number, the sum is reduced.

1. (i) 53

(ii) 427

(iii) 170

(iv) 188

(v) 318

(vi) 583, 421

(vii) 3254

(viii) 1247, 6253

(ix) 1427

(x) 2982

(xi) 1572

(xii) 2524

(xiii) 33, 39

(xiv) 17, 15, 16

(xv) 135, 345

2. (i) 365

(ii) 1350

(iii) 0

(iv) 0

(v) 80

(vi) 1

(vii) 1461

(viii) 3781

(ix) 1

(x) 0

3. 0

4. (i) True

(ii) False