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Vesnalui [34]
3 years ago
12

Write about which method you prefer to use to multiply two 2-digit numbers-regrouping,partial products,or breaking apart a model

.Explain why.
Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
7 0

Answer with explanation:

If we have to multiply ,two two digit numbers

   The three methods which is given here is:

1.Regrouping :

→→45 × 36

= 170

105

--------

1 2 2 0

2.Partial Products

→34 × 23

 =    20   +    3

30|600  +    90|

+

4 |80     +     12|

=782

3. Breaking apart

→→ 43 × 32

=(40+3)×(30+2)

=40×30+3×30+40×2+3×2

=1200+90+80+6

=1376

In Breaking Apart Model, we break the two digit number such that, 0 is at unit digit and then use the Identity

⇒(x+a)×(x+b)=x²+(a+b)x+ab

In this model we don't have to make table.So, this method is Preferred.

lianna [129]3 years ago
5 0
I prefer partial products because we can apply the methods we used from writing two digit times one digit problems and apply them here. It is much more simple than the other methods.
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Answer:

hope this helps! :)

Step-by-step explanation:

4x=36

divide both sides of the equation by 4

4x / 4 = 36 / 4

Any expression divided by itself equals 1

x= 36 / 4

Calculate the quotient

36/4 = 9

<u>x=9</u>

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3 years ago
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Answer:

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3 years ago
Casey wants to buy a gym membership. Gym A has a $150 joining fee and costs $35 per month. Gym B has no joining fee and costs $6
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Answer:

Step-by-step explanation:

Gym A has a $150 joining fee and costs $35 per month.

Assuming that Casey wants to attend for x months, the cost of using gym A will be

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60 × x months = 60x

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It will take 6 months for both gym memberships to be the same.

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6 0
3 years ago
Please help thanks and show work
My name is Ann [436]

First find the area of the triangle at the end.

Area of a triangle is 1/2 x base x height.

The triangle is a right triangle with a base of 4 and height of 3


area = 1/2 x 4 x 3 = 6 square cm


Now to find the volume multiply the area of the triangle by the length of the prism.


volume = 6 square cm x 11 cm = 66 cubic cm.


answer: 66 cm^3

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2 years ago
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Answer:

3y-1 = 2y+7

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y = 8

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3 years ago
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