Download Chapter 2 Vocabulary Cards

Vocab
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Lesson 2-1
Lesson 2-4
divide (division)
dividend
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15 ÷ 3 = 5
12 ÷ 3 = 4
Lesson 2-1
Lesson 2-4
divisor
division sentence
15 ÷ 3 = 5
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15 ÷ 3 = 5
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Lesson 2-5
fact family
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Lesson 2-5
9 × 3 = 27
27 ÷ 9 = 3
3 × 9 = 27
27 ÷ 3 = 9
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Lesson 2-1
inverse operations
2 × 5 = 10
10 ÷ 2 = 5
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Lesson 2-4
partition
quotient
15 ÷ 3 = 5
6÷2=3
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Ideas for Use
• Group 2 or 3 common words. Add a word
that is unrelated to the group. Then work
with a friend to name the unrelated word.
A number that is being divided.
Circle the dividend in 12 ÷ 4 = .
Then write the quotient.
3
• Design a crossword puzzle. Use the
definition for each word as the clues.
To separate into equal groups, to find the
number of groups, or the number in each
group.
How can dividing help you share snacks with
friends?
Sample answer: I can put the food I
am sharing in equal groups.
The number by which the dividend is being
divided.
A number sentence using numbers
and the ÷ sign.
Write a division sentence in which the divisor
is 5. Circle the divisor.
Write an example of a division sentence.
Then write the sentence using words.
Sample answer: 20 ÷ 5 = 4
Sample answer: 9 ÷ 3 = 3; Nine
divided by three equals three.
Operations that undo each other, like
multiplication and division.
A group of related facts using the same
numbers.
Use inverse operations to write a
multiplication and division sentence.
Write the numbers in the fact family shown
on this card.
Sample answer: 5 × 6 = 30;
3, 9, 27
The answer to a division problem.
To divide or “break up.”
Write and solve a division problem. Circle the
quotient.
Partition can mean “a wall that divides a
room into different areas.” How does that
relate to the math word?
Sample answer: 10 ÷ 5 = 2
Sample answer: Partition means to
divide, the same way a wall divides a
room
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30 ÷ 6 = 5
Vocab
Lesson 2-5
Lesson 2-3
related facts
repeated subtraction
4
⎧
⎨
⎩
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⎧
3⎨
⎩
5
4
3
2
1
3 × 4 = 12
12 ÷ 4 = 3
0
2
4
6
10 ÷ 2 = 5
8
10
Ideas for Use
Subtraction of the same number over and
over again.
Write a sentence comparing repeated
subtraction to repeated addition.
Sample answer: Both can help me
solve division or multiplication
sentences.
• Write the name of each lesson on the front
of each blank card. Write a few study tips on
the back of each card.
Basic facts using the same numbers.
Why is facts plural in this vocabulary word?
Sample answer: Facts is plural
because related facts always show
more than one fact.
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• Write an example for each card. Be sure your
examples are different from what is shown
on each card.