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tatiyna
3 years ago
14

Break apart the addends to find the sum 18+21

Mathematics
1 answer:
ololo11 [35]3 years ago
3 0
We break apart the first numer:

10+8

the second:

20+1

and add like this:

18+21=10+8    +  20+1

now, we can mix up the order:

18+21=10+8    +  20+1= 10+20     + 8+1

add the parts:

18+21=10+8    +  20+1= 10+20     + 8+1=30+9=39




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If someone helps me with all of them i will mark them as brainliest​
Harlamova29_29 [7]

Answer:

Step-by-step explanation:

1.  (a) 24 X 3/4= 18 multiplication

you have to multiply to get a smaller answer since you are using a fraction.

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you have to divide to get a bigger number than started since you are using a fraction

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3 years ago
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The answer is C. !!!

8 0
3 years ago
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7) If angle K is defined by the expression "8x+25" and angle M is defined by the expression "6x+15" find the measure of angle K.
castortr0y [4]

Answer:

i looked it up in math ay and i got nothing i put 6x + 15 in to it and it said ***Factor 3 out of 6x + 15**   **3 2x + 15**

Step-by-step explanation:

hope this helps

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I need help on this ? Please answer in the next couple minutes
Mila [183]

Answer:

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Step-by-step explanation:

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