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 #17 : Adding And Subtracting Within 20

Fill in the blank: \(\displaystyle 20\), __________, \(\displaystyle 12\), \(\displaystyle 8\), \(\displaystyle 4\)

 

Possible Answers:

\(\displaystyle 17\)

\(\displaystyle 14\)

\(\displaystyle 16\)

\(\displaystyle 15\)

\(\displaystyle 18\)

Correct answer:

\(\displaystyle 16\)

Explanation:

In this series we are subtracting \(\displaystyle 4\), or counting down by \(\displaystyle 4\)\(\displaystyle 20-4=16\), \(\displaystyle 16-4=12\), \(\displaystyle 12-4=8\), and \(\displaystyle 8-4=4\).

Example Question #115 : Common Core Math: Grade 1

Fill in the blank: \(\displaystyle 10\), \(\displaystyle 8\), \(\displaystyle 6\), __________, \(\displaystyle 2\) 

 

Possible Answers:

\(\displaystyle 0\)

\(\displaystyle 5\)

\(\displaystyle 4\)

\(\displaystyle 1\)

\(\displaystyle 3\)

Correct answer:

\(\displaystyle 4\)

Explanation:

In this series we are subtracting by \(\displaystyle 2\), or counting down by \(\displaystyle 2\)\(\displaystyle 10-2=8\)\(\displaystyle 8-2=6\)\(\displaystyle 6-2=4\), and \(\displaystyle 4-2=2\).

Example Question #116 : Common Core Math: Grade 1

Fill in the blank: \(\displaystyle 15\), \(\displaystyle 12\), \(\displaystyle 9\), __________, \(\displaystyle 3\)

 

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 1\)

\(\displaystyle 8\)

\(\displaystyle 7\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 6\)

Explanation:

In this series we are subtracting \(\displaystyle 3\), or counting down by \(\displaystyle 3\)\(\displaystyle 15-3=12\)\(\displaystyle 12-3=9\)\(\displaystyle 9-3=6\), and \(\displaystyle 6-3=3\).

Example Question #117 : Common Core Math: Grade 1

Fill in the blank: \(\displaystyle 20\), \(\displaystyle 16\), \(\displaystyle 12\), __________, \(\displaystyle 4\) 

 

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 7\)

\(\displaystyle 8\)

\(\displaystyle 6\)

\(\displaystyle 11\)

Correct answer:

\(\displaystyle 8\)

Explanation:

In this series we are subtracting \(\displaystyle 4\), or counting down by \(\displaystyle 4\)\(\displaystyle 20-4=16\)\(\displaystyle 16-4=12\)\(\displaystyle 12-4=8\), and \(\displaystyle 8-4=4\).

Example Question #22 : Adding And Subtracting Within 20

Fill in the blank: \(\displaystyle 20\), \(\displaystyle 15\), __________, \(\displaystyle 5\) 

 

Possible Answers:

\(\displaystyle 25\)

\(\displaystyle 8\)

\(\displaystyle 10\)

\(\displaystyle 0\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 10\)

Explanation:

In this series we are subtracting \(\displaystyle 5\), or counting down by \(\displaystyle 5\)\(\displaystyle 20-5=15\)\(\displaystyle 15-5=10\), and \(\displaystyle 10-5=5\).

Example Question #571 : Numbers And Operations

Fill in the blank: \(\displaystyle 20\), __________, \(\displaystyle 10\), \(\displaystyle 5\) 

 

Possible Answers:

\(\displaystyle 30\)

\(\displaystyle 15\)

\(\displaystyle 25\)

\(\displaystyle 20\)

\(\displaystyle 10\)

Correct answer:

\(\displaystyle 15\)

Explanation:

In this series we are subtracting \(\displaystyle 5\), or counting down by \(\displaystyle 5\)\(\displaystyle 20-5=15\)\(\displaystyle 15-5=10\), and \(\displaystyle 10-5=5\).

Example Question #21 : Relate Counting To Addition And Subtraction: Ccss.Math.Content.1.Oa.C.5

Fill in the blank: \(\displaystyle 15\), \(\displaystyle 12\), __________, \(\displaystyle 6\), \(\displaystyle 3\)

 

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle 11\)

\(\displaystyle 10\)

\(\displaystyle 7\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 9\)

Explanation:

In this series we are subtracting \(\displaystyle 3\), or counting down by \(\displaystyle 3\)\(\displaystyle 15-3=12\)\(\displaystyle 12-3=9\)\(\displaystyle 9-3=6\), and \(\displaystyle 6-3=3\).

Example Question #32 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

 

Possible Answers:

\(\displaystyle 6=7+1\)

\(\displaystyle 6=5+2\)

\(\displaystyle 6=7-1\)

\(\displaystyle 6=5-2\)

Correct answer:

\(\displaystyle 6=7-1\)

Explanation:

When you subtract \(\displaystyle 1\) from \(\displaystyle 7\), you get \(\displaystyle 6\). \(\displaystyle 5+2\) does not equal \(\displaystyle 6\), because \(\displaystyle 5+2=7\). \(\displaystyle 7+1\) does not equal \(\displaystyle 6\) because \(\displaystyle 7+1=8\). \(\displaystyle 5-2\) does not equal 6 because \(\displaystyle 5-2=3\)

Example Question #33 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

 

 

Possible Answers:

\(\displaystyle 1=3-1\)

\(\displaystyle 1=3-2\)

\(\displaystyle 1=3+1\)

\(\displaystyle 1=4+2\)

Correct answer:

\(\displaystyle 1=3-2\)

Explanation:

When you subtract \(\displaystyle 2\) from \(\displaystyle 3\), you get \(\displaystyle 1\). \(\displaystyle 3-1\) does not equal \(\displaystyle 1\), because \(\displaystyle 3-1=2\). \(\displaystyle 3+1\) does not equal \(\displaystyle 1\), because \(\displaystyle 3+1=4\). \(\displaystyle 4+2\) does not equal \(\displaystyle 1\) because \(\displaystyle 4+2=6.\)

Example Question #34 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

 

 

Possible Answers:

\(\displaystyle 4=6+2\)

\(\displaystyle 4=6-3\)

\(\displaystyle 4=6-2\)

\(\displaystyle 4=6+3\)

Correct answer:

\(\displaystyle 4=6-2\)

Explanation:

When you subtract \(\displaystyle 2\) from \(\displaystyle 6\) you get \(\displaystyle 4\). \(\displaystyle 6-3\) does not equal \(\displaystyle 4\) because \(\displaystyle 6-3=3\). \(\displaystyle 6+2\) does not equal \(\displaystyle 4\) because \(\displaystyle 6+2=8\). \(\displaystyle 6+3\) does not equal \(\displaystyle 4\) because \(\displaystyle 6+3=9\).

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