Multiplication Flashcards
What are the two numbers in a multiplication called?
Two factors.
Define a multiplication:
A multiplication is the process of adding the same number a number of times.
Ex:5x4=adding the number five to itself four times.
What is the result of a multiplication called?
The product.
What is the table of 2, from 1 to 10?
2x1=2 2x2=4 2x3=6 2x4=8 2x5=10 2x6=12 2x7=14 2x8=16 2x9=18 2x10=20
What is the table of 3,from 1 to 10?
3x1=3 3x2=6 3x3=9 3x4=12 3x5=15 3x6=18 3x7=21 3x8=24 3x9=27 3x10=30
What is the table of 4,from 1 to 10?
4x1=4 4x2=8 4x3=12 4x4=16 4x5=20 4x6=24 4x7=28 4x8=32 4x9=36 4x10=40
What is the table of 5, from 1 to 10?
5x1=5 5x2=10 5x3=15 5x4=20 5x5=25 5x6=30 5x7=35 5x8=40 5x9=45 5x10=50
What is the table of 6, from 1 to 10?
6x1=6 6x2=12 6x3=18 6x4=24 6x5=30 6x6=36 6x7=42 6x8=48 6x9=54 6x10=60
What is the table of 7, from 1 to 10?
7x1=7 7x2=14 7x3=21 7x4=28 7x5=35 7x6=42 7x7=49 7x8=56 7x9=63 7x10=70
What is the table of 8, from 1 to 10?
8x1=8 8x2=16 8x3=24 8x4=32 8x5=40 8x6=48 8x7=56 8x8=64 8x9=72 8x10=80
What is the table of 9, from 1 to 10?
9x1=9 9x2=18 9x3=27 9x4=36 9x5=45 9x6=54 9x7=63 9x8=72 9x9=81 9x10=90
What is the table for 10, from 1 to 10?
10x1=10 10x2=20 10x3=30 10x4=40 10x5=50 10x6=60 10x7=70 10x8=80 10x9=90 10x10=100
11x11=?
121
23x4=?
92
45x20=?
900
603x55=?
33 165
565x246=?
138 990
20x?=120
6
33x?=132
4
560x?=10 640
19
371x?=36 358
98
839x?=3 775 500
4500
When confronted with an operation with a multiplication and an addition/substraction(ex:25+5x4),which do you calculate first:
- the addition
- the substraction
- the multiplication
You must always calculate the multiplication first,EXCEPT if there is a parentheses around the addition/substraction.
Ex:25+5x4 Multiplication first =25+20=45
(25+5)x4 Addition first =30x4=120
90-5x6
90-30=60
170-(8+9)x10
170-17x10=170-170=0
35x(50x40)+(6x5)
35x2000-30=70 000-30=69 970