MATHEMATICS MIDDLE SCHOOL

Explain how to use the combine place values strategy to find 223-119

Answers

Answer 1

Answer:

Answer: 223 - 119 = 104

Step-by-step explanation:

For subtracting 223-119,we will write this as

H T O

2 2 3

- 1 1 9

Noe start from the right we can't subtract 9 from 3 so combine tens and ones places so that 23-19=04(should remember to place 0 before 4), after that we can simply solve the hundred to get the final answer.

H T O

2 2 3

- 1 1 9

1 0 4

So 104 is the answer.

Answer 2

Answer: So, the subtraction looks like this:

   223
-119
_______

The reason why combining place values here is necessary is that 3 is less than 9 (so I can't just substract in the one's place without going to negative numbers)

so we combine the ones and tens places and substract the whole: 23-19 is four!
   223
-119
_______
   04

and then we continue
   223
-119
_______
    204

and that's the result!

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Which is more,5 ounces or 1 pund

Answers

One pound is greater than five ounces because there are 16 ounces in a pound. 16 ounces are greater than 5 ounces
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1 pound is more
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and 16 oz is more than 5 oz

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Answers

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I need help with part a and park b pleasee!

Answers

Part A: First plot the points. Then you have to find the midpoint of AB.

Midpoint Formula:(x1+x2)/2,(y1+y2)/2

Answer: (-1,-1)

Part B: We know that the midpoint is (-1,-1). C is (2,7) and D is (x,y)

So redo the midpoint formula with both C and D.

(2+x)/2=-1

2 + x =-2; x=-4

(7+y)/2=-1

7 + y=-2; y=-9

Hope this helps!

Formula for the coordinates of the midpoint of the AB sector:

$A(x_A,\ y_A);\ B(x_B;\ y_B)\n\nM_(AB)\left((x_A+x_B)/(2);\ (y_A+y_B)/(2)\right)$

$A(-8,\ 7),\ B(6,\ -9)\n\nM\left((-8+6)/(2);\ (7+(-9))/(2)\right)\to M\left((-2)/(2);\ (-2)/(2)\right)\to M(-1;\ -1)$

Answer: The picture 1. M(-1, -1).

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Answer: The picture 2. D(-4, -9).

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