SSAT Elementary Level Math : How to subtract

Study concepts, example questions & explanations for SSAT Elementary Level Math

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Example Questions

Example Question #6 : Solving Problems Involving The Four Operations, And Identifying And Explaining Patterns In Arithmetic

Sara is hanging up flyers around her school. She started with  flyers. She hung  flyers around the east side of the building, but she hung half as many flyers on the west side of the building. How many flyers does she have left? 

Possible Answers:

Correct answer:

Explanation:

To solve this problem, we first have to find our unknowns. Our unknowns are the number of flyers that she hung on the west side of the building and the number of flyers she has left over. We can set up equations for these unknowns by letting  represent the flyers she hung on the west side and  represent the flyers that she has left. 

  because she hung half as many flyers on the west side as she hung on the east side. When we half something we always divide by .

 

To find the total number of flyers that she hung we add the amount of flyers on the east side and the amount on the west side. 

To find how many flyers she has left, we subtract that total flyers that were hung from the  flyers that she started with. 

Example Question #113 : Measurement & Data

Megan is working on a science experiment. She needs to have  of water. Based on the scale below, how much more water does she need to add?


15 g

Possible Answers:

Correct answer:

Explanation:

Megan has  of water, but she needs . To find out how much more she needs we subtract. 

Example Question #116 : Measurement & Data

Megan is working on a science experiment. She needs to have  of water. Based on the scale below, how much more water does she need to add?

11 g

Possible Answers:

Correct answer:

Explanation:

Megan has  of water, but she needs . To find out how much more she needs we subtract. 

Example Question #821 : How To Subtract

Megan is working on a science experiment. She needs to have  of water. Based on the scale below, how much more water does she need to add?


19 g

Possible Answers:

Correct answer:

Explanation:

Megan has  of water, but she needs . To find out how much more she needs we subtract. 

Example Question #1 : Recognize Angle Measure As Additive: Ccss.Math.Content.4.Md.C.7

Solve for x. 

180 degrees

Possible Answers:

Correct answer:

Explanation:

The angle is a straight line. A straight line is . To find the missing angle we subtract. 

Example Question #2 : Recognize Angle Measure As Additive: Ccss.Math.Content.4.Md.C.7

Solve for x. 

150 degrees

Possible Answers:

Correct answer:

Explanation:

To find the value of x we subtract. 

Example Question #3 : Recognize Angle Measure As Additive: Ccss.Math.Content.4.Md.C.7

Solve for x. 

65 degrees

Possible Answers:

Correct answer:

Explanation:

To find the value of x we subtract. 

Example Question #4 : Recognize Angle Measure As Additive: Ccss.Math.Content.4.Md.C.7

Solve for x. 

145degrees

Possible Answers:

Correct answer:

Explanation:

To find the value of x we subtract. 

Example Question #822 : How To Subtract

Solve for x. 

130degrees

Possible Answers:

Correct answer:

Explanation:

To find the value of x we subtract. 

Example Question #823 : How To Subtract

If we wanted to make this angle into a straight line, how many more degrees would we need to add? 

32degrees

Possible Answers:

Correct answer:

Explanation:

A straight line has a measurement of . We can subtract to find how much more we'd need to have a straight line. 

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