Read posting **Sarin and the million numbers** and **Hairu and the numbers **to understand the mathematics concept of numbers.

Upper primary school mathematics question UPQ31

UPQ31-1. *Arrange the digits 5, 3, 7, 6, 9 and 2 to form the smallest *

* possible 6-digit **even number. The place value of the *

* digit 7 in this smallest number is** ___________.*

* (1) ones*

* (2) tens*

* (3) hundreds*

* (4) thousands*

UPQ31-2. *Express 4 9/20 as a decimal.*

* (1) 4.09*

* (2) 4.45*

* (3) 4.2*

* (4) 4.9*

UPQ31-3. *Multiply 0.08 by 1000. What is the answer?*

* (1) 0.8*

* (2) 8*

* (3) 80*

* (4) 800*

UPQ31-4. *A number becomes 834 000 when it is rounded off to the*

* nearest thousands. **The number is _____________.*

* (1) 832 600*

* (2) 833 400*

* (3) 833 600*

* (4) 834 600*

Solution:

UPQ31-1. *Arrange the digits 5, 3, 7, 6, 9 and 2 to form the smallest *

* possible 6-digit **even number. The place value of the *

* digit 7 in this smallest number is** ___________.*

* (1) ones*

* (2) tens*

* (3) hundreds*

* (4) thousands*

235796 7 hundreds

UPQ31-2. *Express 4 9/20 as a decimal.*

* (1) 4.09*

* (2) 4.45*

* (3) 4.2*

* (4) 4.9*

4 9/20 = 4 + 9/20

= 4 + 0.45

= 4.45

UPQ31-3. *Multiply 0.08 by 1000. What is the answer?*

* (1) 0.8*

* (2) 8*

* (3) 80*

* (4) 800*

0.08 × 1000 = 8 × 10 = 80

UPQ31-4. *A number becomes 834 000 when it is rounded off to the*

* nearest thousands. **The number is _____________.*

* (1) 832 600*

* (2) 833 400*

* (3) 833 600*

* (4) 834 600*

834 000 – 832 600 = 1 400

834 000 – 833 400 = 600

834 000 – 833 600 = 400

834 600 – 834 000 = 600