top of page
Welcome to Year 3 Mathematics
Lessons & Assignments
![1 plus 1.png](https://static.wixstatic.com/media/f19861_6f8e0edc65414095a6868e56404d5e82~mv2.png/v1/fill/w_255,h_156,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/1%20plus%201.png)
![2 plus 3.png](https://static.wixstatic.com/media/f19861_15e62acd9b974a14bb858d42f72405df~mv2.png/v1/fill/w_160,h_181,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/2%20plus%203.png)
![845628.png](https://static.wixstatic.com/media/f19861_e7c97bdd2ed947359e0e282d2756fba6~mv2.png/v1/fill/w_156,h_156,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/845628.png)
![3 plus 3.png](https://static.wixstatic.com/media/f19861_fed6d3c3480d486a9d7a5255e0218685~mv2.png/v1/fill/w_395,h_254,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/3%20plus%203.png)
WEEK 6
![addition font.png](https://static.wixstatic.com/media/f19861_f78fa709b476483184a7dc25b9186dba~mv2.png/v1/fill/w_294,h_60,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/addition%20font.png)
![image.png](https://static.wixstatic.com/media/f19861_a6e103d03fdf487fb9dd75ab3a5e8e99~mv2.png/v1/fill/w_247,h_254,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/image.png)
Meaning of Sum
What is sum?
In mathematics, sum is the answer we get by adding two or more numbers together.
![week 6 eg1.png](https://static.wixstatic.com/media/f19861_0ae0f69c981340749f3e66c38f2c4e55~mv2.png/v1/fill/w_440,h_428,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/week%206%20eg1.png)
![week 6 eg2.png](https://static.wixstatic.com/media/f19861_c6b7cdd485e248329c56e8b4832e180e~mv2.png/v1/fill/w_495,h_310,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/week%206%20eg2.png)
![week 6 sum eg3.png](https://static.wixstatic.com/media/f19861_44442dfb3201492a9f9999ced9b219e7~mv2.png/v1/fill/w_483,h_416,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/week%206%20sum%20eg3.png)
![week 6 eg4 colored.png](https://static.wixstatic.com/media/f19861_a47f0032ac5d4e1bbe4b12851da8b6dd~mv2.png/v1/fill/w_485,h_274,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/week%206%20eg4%20colored.png)
![week 6 eg5.png](https://static.wixstatic.com/media/f19861_83df3ec720074ed1acb967fdfac31388~mv2.png/v1/fill/w_600,h_339,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/week%206%20eg5.png)
Find the doubles.
![3ca7367112754dc80a9ad45ff8db2e4d.png](https://static.wixstatic.com/media/f19861_ebedf6983f464f3097d7eb00c2fdb023~mv2.png/v1/fill/w_939,h_290,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/3ca7367112754dc80a9ad45ff8db2e4d.png)
Double means adding the same number together.
Example 1
What is the double of 14?
14 + 14 = 28
![double 1.png](https://static.wixstatic.com/media/f19861_6038928ff1eb4977a95b1861b2b93c37~mv2.png/v1/fill/w_244,h_284,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/double%201.png)
Example 2
What is the double of 65?
65 + 65 = 130
![double 2.png](https://static.wixstatic.com/media/f19861_fefe4cefcdc64fdb94556968797f6e84~mv2.png/v1/fill/w_256,h_313,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/double%202.png)
Example 3
What is the double of 320?
320 + 320 = 640
![double 3.png](https://static.wixstatic.com/media/f19861_2743be18996647bb9865474b444910c2~mv2.png/v1/fill/w_262,h_318,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/double%203.png)
Adding Tens and Hundreds
2789 +10 =
2799
![add3.png](https://static.wixstatic.com/media/f19861_35d10034752f478fb354b7d9237e846c~mv2.png/v1/fill/w_243,h_208,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/add3.png)
3084 +40 =
3124
![adding tens.png](https://static.wixstatic.com/media/f19861_4cad29db9807458d853db29a4644537c~mv2.png/v1/fill/w_249,h_239,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/adding%20tens.png)
7063 +200 =
7263
![adding hundreds 1.png](https://static.wixstatic.com/media/f19861_fc15f12feadd4fa1999503684dcfb24d~mv2.png/v1/fill/w_281,h_227,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/adding%20hundreds%201.png)
5119 +900 =
6019
![adding hundreds 2.png](https://static.wixstatic.com/media/f19861_1f24503b9345458a94eb1ffd1d24e79b~mv2.png/v1/fill/w_242,h_226,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/adding%20hundreds%202.png)
Addition without Regrouping
Find the sum of 1357 and 5241.
![eg1.png](https://static.wixstatic.com/media/f19861_3f2ef8ff1fbd4b2bb065814771f9429c~mv2.png/v1/fill/w_444,h_313,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/eg1.png)
Step 1 : Add the ones.
Step 2 : Add the tens.
Step 3 : Add the hundreds.
Step 4 : Add the thousands.
![red arrow.png](https://static.wixstatic.com/media/f19861_fcefa5b0fe8144468661cfd7f7f74d93~mv2.png/v1/fill/w_444,h_180,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/red%20arrow.png)
Add from right to left.
The sum of 2000 and 7876 is .
9876
![working2.png](https://static.wixstatic.com/media/f19861_c8eccab183e242d59790ea51ef8a7db0~mv2.png/v1/fill/w_281,h_239,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/working2.png)
![arrow red.png](https://static.wixstatic.com/media/f19861_5168bac92edc46aa8cb14292e2849b47~mv2.png/v1/fill/w_281,h_117,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/arrow%20red.png)
Add from right to left.
Add 5042 and 3857.
![working1.png](https://static.wixstatic.com/media/f19861_42b4cd11fdfa4754a92b900e79e0b07d~mv2.png/v1/fill/w_259,h_226,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/working1.png)
Add from right to left.
![arrow red.png](https://static.wixstatic.com/media/f19861_5168bac92edc46aa8cb14292e2849b47~mv2.png/v1/fill/w_258,h_107,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/arrow%20red.png)
1445 +3 =
1448
![add eg1.png](https://static.wixstatic.com/media/f19861_63c49ab7645a4f34b2a7c8ee36209a1e~mv2.png/v1/fill/w_257,h_222,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/add%20eg1.png)
9571 +28 =
9599
![add1.png](https://static.wixstatic.com/media/f19861_87a26f042954418e8e1ea4d28735a68e~mv2.png/v1/fill/w_198,h_166,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/add1.png)
4152 + 736 =
4888
![add2.png](https://static.wixstatic.com/media/f19861_c62583c445ef4c5cb94172318e913219~mv2.png/v1/fill/w_315,h_262,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/add2.png)
bottom of page