Question

Tính nhẩm:

6000 + 3000 – 5000

8000 – 3000 – 2000

7000 – (1500 + 4500)

6000 + 2000 – 3000

Answer 1

Tính nhẩm:

6000 + 3000 – 5000

= 9000 - 5000

= 4000 

8000 – 3000 – 2000

= 5000 - 2000

= 3000

7000 – (1500 + 4500)

= 7000 - 6000

= 1000

6000 + 2000 – 3000

= 8000 - 3000

= 5000

Answer 2

`6000 + 3000 – 5000= 9000-5000= 4000`

`8000 – 3000 – 2000=5000-2000=3000`

`7000 – (1500 + 4500)=7000-6000=1000`

`6000 + 2000 – 3000=8000-3000=5000`