Problem 29

Elizabeth was making a dress that had 150 buttonholes on it. Each buttonhole needed a button. She stitched 67 shell buttons and 63 silver buttons to the back of her dress. How many more buttons did she need to get?

Step 1. What does the problem ask you to find?

1. Where was she going to wear the dress?
2. What color was the dress?
3. How many buttons did she sew on to the dress?
4. How many more buttons did she need to get?

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Step 2. What information is needed to solve the problem?

1. The number of button holes on the dress.
2. The number of times Elizabeth pricked her finger.
3. The number of buttons she sewed on.
4. The number of ladies that wanted to borrow her dress.

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Step 3 Select the correct expression.

1. 150 + 67 + 63
2. 150 - 67 + 63
3. 150 + 67 - 63
4. 150 - (67 + 63)

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Step 4. Select the correct solution.

1. 280
2. 146
3. 154
4. 20

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