How do you make a 10 to find 13-8

Mathematics

1 answer:

zvonat [6]3 years ago

4 0

You can "make 10" out of either the positive number or the negative one.

13 - 8

= (10 +3) -8 = 10 +(3 -8) = 10 -5 = 5

= 13 -(10 -2) = (13 -10) +2 = 3 +2 = 5

_____

The latter approach would be used for computation using a soroban or abacus.

You might be interested in

7 multiplied by 5 multiplied by 2 whole over 7 multiplied by 3, the whole raised to the power of 2 multiplied by 5 to the power

Nezavi [6.7K]

It is bassicaly zero

4 0

3 years ago

If you have 20 oranges and a friend bought 10 more and gave then to you and you bought 10 more and then you divide the oranges f

In-s [12.5K]

Answer:

I guess each friend gets 16 oranges and its gonna be uneven there is gonna be like 1 left over

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A cylindrical canister contains 3 tennis balls. Its height is 8.75 inches and its radius is 1.5. The diameter of one tennis ball

Rudiy27

Find Volume of 1 tennis ball:----------------------------------------------Volume of 1 tennis ball = 4/3 x 3.14 x (2.5 ÷ 2)³
Volume of 1 tennis ball = 8.18 in³
----------------------------------------------Find Volume of 3 tennis balls:----------------------------------------------Volume of 3 tennis balls = 8.18 x 3 = 24.54 in³
----------------------------------------------Find Volume of teh cylindrical canister:----------------------------------------------Volume of the cylindrical canister = 3.14 x 1.5² x (2.5 x 3)
Volume of the cylindrical canister = 52.99 in³
----------------------------------------------Find unoccupied space:----------------------------------------------Unoccupied space = 52.99 - 24.54
Unoccupied space = 28.45 in³
----------------------------------------------Answer: 28.45 in³----------------------------------------------

4 0

3 years ago

Read 2 more answers

What math property is this example?:<br><br>5+(-5)=0

belka [17]

Answer:

Additive Identity Property: The sum of any number and zero is the original number. For example 5 + 0 = 5

Step-by-step explanation:

Additive Identity Property: The sum of any number and zero is the original number. For example 5 + 0 = 5

6 0

3 years ago

Smart ppl i rly rly rly need your help on this please ! i dont get it!

elixir [45]

Answer:

The first one is -2x^2 - 21x + 4, the second one is -15 (I think, not 100% sure), the third one is 4xyz + 3yz + 5x - 4 (also not 100% on this one)

3 0

3 years ago