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Ex 2, 3 page 140

Ex.2

This is me and my family. We are at the park. My sisther is painting. Can you see my two brothers? They are riding their bikes. My mum is siting on a bench. She is reading a book. Look at my dad. He is writhing an email. Can you see me? I,m under the tree. I am playing my guitar.

Ex.3

This is Anna. She lives in a big house. Anna gets up early every morning.

She brushes her teeth, haves a shower and catches the bus to school. After school, Anna and her brother Sean goes swimming. They love swimming.

Рубрика: Մաթեմատիկա

Մաթեմատիկա 05.05.2021

771.  Արտահայտի՛ր նշված միավորներով

ա) 3023մ=3կմ 23մ

452սմ=4մ  52սմ

324մմ=32սմ 4մմ

բ) 60222գ= 60կգ 222գ

4052կգ=40ց 52կգ

3004կգ=3տ  4կգ

772. Գտի՛ր անհայտ բաղադրիչը:

ա) 32768:32=1024

1024×32=32768

25=50500:2020

50500:25=2020

բ) 7550:302=25

7550:25=302

2211=39798:18

2211×18=39798

գ) 28×303=8484

8484:28=303

3636=101×36

3636:36=101

773. Գտի՛ր անհայտ բաղադրիչը:

ա)  5392+2456=7848

7848-2456=5392

2156=8978-6822

8978-2156=6822

բ) 55878=21547+34331

55878-21547=34331

 36349-345=36004

36004+345=36349

գ) 100001=94446+5555

100001-5555=94446

20002-14750=5252

20002-5252=14750