Ask question

Ask question

All categories

3 years ago

6

How can you subtract two integers without number lines or counters

1 answer:

Mekhanik [1.2K]3 years ago

8 0

For example:

12 - 10 = ?

Start with the numbers to the far right; take your 2 from the 12 draw a curving line from that 2 to the 0 in 10; ask what is 2 minus zero? 2!

Draw a curving arrow from the 1 in 12 to the 1 in 10. And ask, what is one minus one ?
Zero.

Try that with other numbers

You might be interested in

What is the value of 7 in 0.750

GenaCL600 [577]

It is in the tenths place, 7/10

3 0

3 years ago

Read 2 more answers

Yeah help p l e a s e and thank you

Marizza181 [45]

Ruhig got ufcxto kfuvubll Ickes hilfsbereit bjgifkh

6 0

3 years ago

Surface area for this 4height 4lenght 6 width

xenn [34]

Answer:

64

Step-by-step explanation:

4 * 4 * 6 = 64

5 0

3 years ago

Suppose a regular pentagon with a perimeter of 34 inches was dilated by a scale factor of 0.25. Fill in the blanks in the follow

rusak2 [61]

Answer:

$6.8\ \text{in}$

$8.5\ \text{in}$

$1.7\ \text{in}$

Step-by-step explanation:

Perimeter of the pendulum = 34 inches

Scale factor = 0.25

x = Length of side of pentagon

$5x=34\\\Rightarrow x=\dfrac{34}{5}\\\Rightarrow x=6.8\ \text{in}$

The pentagon’s side length before the dilation was $6.8\ \text{in}$ .

New perimeter of the pentagon

$34\times 0.25=8.5\ \text{in}$

New perimeter of the pentagon is $8.5\ \text{in}$ .

$5x=8.5\\\Rightarrow x=\dfrac{8.5}{5}\\\Rightarrow x=1.7\ \text{in}$

The new side length of the perimeter is $1.7\ \text{in}$ .

7 0

3 years ago

A ladder is placed 4 feet from the base of a building the ladder reach a height of 12 what is the length of the ladder?Round you

Natali5045456 [20]

To work this out , you use pythagoras theorem . a^2 + b^2 = c^2 , so 4^2 + 12^2 = c^2 , 16 + 144 = c^2 , c^2 = 160 , so c = <span>√160 = 12.64</span>

8 0

4 years ago