How Do You Know if You Need to Ungroup a Ten for Ones When Subtracting

Math Expressions Common Core Grade 2 Unit of measurement vi Lesson ten Answer Central Subtract from Numbers with Zeros

Math Expressions Form 2 Unit of measurement 6 Lesson 10 Homework

Decide if you need to ungroup. If you need to ungroup, draw a magnifying glass around the top number. And then find the answer.

Question 1.

Ungroup to get ten ones? ___________
Ungroup to get 10 tens? ___________
Respond:

Explanation:
Ungroup to become x ones?

As, ones place lower number 9 is greater than upper number 0, we need to borrow from tens place(10-9=1).

Ungroup to go 10 tens?

As, tens identify lower number 9 is greater than upper number ii, we demand to borrow ten from hundreds place(12-9=3).

Question 2.

Ungroup to get x ones? ___________
Ungroup to go 10 tens? ___________
Answer:

Explanation:
Ungroup to go 10 ones?

Every bit, ones identify lower number nine is greater than upper number 0, we demand to borrow from tens place(10-9=one).
Ungroup to get 10 tens?

Equally, tens place upper number 4 is greater than lower number 3, subtraction can be done without any borrowing(4-iii=ane).

Question iii.

Ungroup to go ten ones? ___________
Ungroup to get 10 tens? ___________
Reply:

Explanation:
Ungroup to get ten ones?

As, ones place lower number 7 is greater than upper number 0, we demand to borrow from tens identify. Nonetheless tens place number is too 0, we cannot borrow from 0. So, we need to borrow from hundreds place two number(10-7=3).

Ungroup to get 10 tens?

As, tens identify number borrows 10 to ones place , so its value going to exist from 10 to 9. 9 is greater than lower tens identify 6 , subtraction can be washed(9-6=iii).

Question 4.

Ungroup to get 10 ones? ___________
Ungroup to get ten tens? ___________
Answer:

Caption:
Ungroup to become 10 ones?

As, ones place lower  number 8 is greater than upper number 4, we need to infringe from tens place. Yet tens identify added is also 0, nosotros cannot infringe from 0. And so, we need to infringe from hundreds place iv number.Subtraction of ones place number can exist washed (14-eight=6).

Ungroup to go 10 tens?

As, tens place number borrows 10 to ones place , and so its value going to be from 10 to 9. Subtraction can be done every bit 9 is greater than lower number in tens place(9-eight=ane).

Question v.

Ungroup to get ten ones? ___________
Ungroup to go 10 tens? ___________
Answer:

Explanation:
Ungroup to go x ones?

As, ones place lower number 3 is greater than 0, nosotros need to borrow from tens place(10-iii=vii).

Ungroup to get 10 tens?

As, tens identify lower number 8 is greater than one, we need to borrow from hundreds place. 11 is greater than lower tens place viii number, subtraction can be done(11-8=3).

Question half dozen.
502 – 149 = ___________
Ungroup to go x ones? ___________
Ungroup to get 10 tens? ___________
Respond:

Explanation:
502 – 149 = 353.
Ungroup to get x ones?

Every bit, ones identify lower number 9 is greater than upper number two, nosotros demand to infringe from tens place. However tens place added is as well 0, we cannot infringe from 0. So, we need to borrow from hundreds identify 5 number(12-5=viii).

Ungroup to get 10 tens?

As, tens place lower number 4 is bottom than 9, we demand not to borrow from hundreds identify and subtraction tin can be done (9-4=5).

Math Expressions Grade 2 Unit of measurement vi Lesson 10 Remembering

Utilize the motion picture graph to answer the questions.

Crayons

Question ane.
Who has the most crayons?
Answer:
Paige has the near crayons.

Explanation:
Number of crayons Paige has = 9.
Number of crayons Tawana has = ii.
Number of crayons Colin has = five.

Question two.
Who has the fewest crayons?
Answer:
Tawana has the fewest crayons.

Caption:
Number of crayons Paige has = ix.
Number of crayons Tawana has = 2.
Number of crayons Colin has = 5.

Question 3.
How many crayons do they all have together?

Respond:
Number of crayons they take altogether = sixteen.

Explanation:
Number of crayons Paige has = 9.
Number of crayons Tawana has = two.
Number of crayons Colin has = 5.
Number of crayons they have altogether = Number of crayons Paige has + Number of crayons Tawana has + Number of crayons Colin has
= ix + 2 + v
= 11 + 5
= xvi.

Solve the discussion problem. Utilise your favorite method. Make a proof cartoon.

Question 4.
There are 500 craft sticks in the box. The art class uses 386 of the arts and crafts sticks. How many craft sticks are left?

Answer:
Number of arts and crafts sticks are left = 114.

Explanation:
Number of craft sticks in the box = 500.
Number of craft sticks the art class used = 386.
Number of craft sticks are left = Number of craft sticks in the box – Number of craft sticks the art class used
= 500 – 386
= 114.

Question five.
Stretch Your Thinking When you are subtracting from a 3-digit number, how do you know if you will need to ungroup?
Respond:
With ungrouping, you are taking a x or hundred and breaking information technology back into separate smaller pieces or undoing the group to have enough to subtract. As well ungrouping works well when describing the functioning needed sometimes for subtracting mixed numbers.

Explanation:
Subtraction is an arithmetic operation of removing a value from another value. The result of this process is chosen a deviation and is expressed past a minus (–) sign.
With ungrouping, you are taking a ten or hundred and breaking it back into split smaller pieces or undoing the group to have enough to subtract. Also ungrouping works well when describing the operation needed sometimes for subtracting mixed numbers.

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