Question

I need to understand question 14 and 15 and the last one cut off for tens in one

Answer 1

Question # 14

Given the numbers

10 11 12 13 14 15 16 17 18 19 20

Let 'x' be the number

The condition breakdown:

I am less than 20.

• So the number 'x' must be less than 20 i.e. x < 20

I am more than 13.

• So the number 'x' must be greater than 13 i.e. x > 13

I am less than 17.

• So the number 'x' must be less than 17 i.e. x < 17

Finally:

I am 4 more than 12

i.e. 12+4 = 16

Thus, the number is x = 16

Question # 15

Part a)

Given the numbers

10 11 12 13 14 15 16 17 18 19 20

Let 'x' be the number

The condition breakdown:

I am more than 10.

• x > 10

I am less than 20.

• x < 20

I am more than 12.

• x > 12

I am less than 15.

• x < 15

As the numbers left after all the conditions are fulfilled are 13 and 14.

• But the last condition is, of the numbers that left, the number is greater than all the remaining numbers.

So, from the remaining number 13 and 14;

14 > 13

Thus, the number x = 14

Part b)

Drawing the number 14 in the place value:

Chart

Tens Ones

1 4