Vocabulary 1
The number that divides the dividend.
divisor
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place value
30 x 70
2,100
79 ÷ 6 =
13 r 1
What is a reasonable estimate for the quotient of the multiplication problem 3 x 320?
900
The number that is to be divided in a division problem.
dividend
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multiple
(8x300) + (8x90) + (8x1)
391 x 8
303 x 6 =
1818
Dora puts 6 lemons in each bag. If she has 125 lemons, how many will be left over?
5 lemons
The number that results from dividing.
quotient
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partial product
What is the expanded form of the multiplication problem 795 x 9?
(9x700) + (9x90) + (9x5)
763 ÷ 3 =
254 r 1
It costs 8,100 points to build each school in the computer game Town Planning. How much does it cost to build 6 schools?
48,600 points
The property that states that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products.
The Distributive Property
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Commutative Property
Use only 3 partial quotients to solve the division problem 492 ÷ 4
100, 20, 3
2,637 x 5 =
13,185
Ann makes 93 greeting cards for a craft fair. He sells the cards in packs of 5. How many full packs of greeting cards does Ann make?
18 full packs
Numbers that are easy to compute mentally.
compatible numbers
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partial quotient
Your friend is trying to help you with a division problem. He tells you that 610 ÷ 9 = 77 r 7. How can you use multiplication to show him that he is wrong?
9 x 77 + 7 = 700
8,473 ÷ 7
1,210 r 3
The harbormaster decides how many trips the ferry needs to make for 37 cars. The ferry can carry 8 cars at a time. What is the best way to interpret the remainder of 37 ÷ 8 so that all cars can cross the harbor?
37 ÷ 8 = 4 r 5, therefore the harbormaster should make 4 + 1 =5 trips.