Math Facts

Question Answer
8 – 2 = 6
7 – 2 = 5
6 – 2 = 4
5 – 2 = 3
4 – 2 = 2
3 – 2 = 1
2 – 2 = 0
10 – 3 = 7
9 – 3 = 6
8 – 3 = 5
7 – 3 = 4
6 – 3 = 3
5 – 3 = 2
4 – 3 = 1
3 – 3 = 0
10 – 4 = 6
9 – 4 = 5
8 – 4 = 4
7 – 4 = 3
6 – 4 = 2
5 – 4 = 1
4 – 4 = 0
10 – 5 = 5
9 – 5 = 4
8 – 5 = 3
7 – 5 = 2
6 – 5 = 1
5 – 5 = 0
10 – 6 = 4
9 – 6 = 3
8 – 6 = 2
7 – 6 = 1
6 – 6 = 0
10 – 7 = 3
9 – 7 = 2
8 – 7 = 1
7 – 7 = 0
10 – 8 = 2
9 – 8 = 1
8 – 8 = 0
10 – 9 = 1
9 – 9 = 0
10 – 10 = 0

2s – 9s Subtraction Facts – Temple

Question Answer
7 – 2 5
7 – 3 4
7 – 4 3
7 – 5 2
8 – 2 6
8 – 3 5
8 – 4 4
8 – 5 3
8 – 6 2
8 – 7 1
9 – 2 7
9 – 3 6
9 – 4 5
9 – 5 4
9 – 6 3
9 – 7 2
9 – 8 1
10 – 1 9
10 – 2 8
10 – 3 7
10 – 4 6
10 – 5 5
10 – 6 4
10 – 8 2
10 – 9 1
10 – 7 3
11 – 2 9
11 – 3 8
11 – 4 7
11 – 5 6
11 – 6 5
11 – 9 2
11 – 7 4
11 – 8 3
12 – 3 9
12 – 4 8
12 – 5 7
12 – 6 6
12 – 7 5
12 – 8 4
12 – 9 3
13 – 4 9
13 – 5 8
13 – 6 7
13 – 7 6
13 – 6 7
13 – 7 6
13 – 8 5
13 – 9 4
14 – 5 9
14 – 6 8
14 – 7 7
14 – 8 6
14 – 9 5
15 – 6 9
15 – 7 8
15 – 8 7
15 – 9 6
16 – 7 9
16 – 8 8
16 – 9 7
17 – 8 9
17 – 9 8
18 – 9 9

Subtraction Facts, Whole Numbers, Families 1 through 14

Question Answer
0-0 0
1-0 1
1-1 0
2-0 2
2-1 1
2-2 0
3-0 3
3-1 2
3-2 1
3-3 0
4-0 4
4-1 3
4-2 2
4-3 1
4-4 0
5-0 5
5-1 4
5-2 3
5-3 2
5-4 1
5-5 0
6-0 6
6-1 5
6-2 4
6-3 3
6-4 2
6-5 1
6-6 0
7-0 7
7-1 6
7-2 5
7-3 4
7-4 3
7-5 2
7-6 1
7-7 0
8-0 8
8-1 7
8-2 6
8-3 5
8-4 4
8-5 3
8-6 2
8-7 1
8-8 0
9-0 9
9-1 8
9-2 7
9-3 6
9-4 5
9-5 4
9-6 3
9-7 2
9-8 1
9-9 0
10-0 10
10-1 9
10-2 8
10-3 7
10-4 6
10-5 5
10-6 4
10-7 3
10-8 2
10-9 1
10-10 0
11-0 11
11-1 10
11-2 9
11-3 8
11-4 7
11-5 6
11-6 5
11-7 4
11-8 3
11-9 2
11-10 1
11-11 0
11-0 11
12-0-12
12-1 11
12-2 10
12-3 9
12-4 8
12-5 7
12-6 6
12-7 5
12-8 4
12-9 3
12-10 2
12-11 1
12-12 0
13-0 13
13-1 12
13-2 11
13-3 10
13-4 9
13-5 8
13-6 7
13-7 6
13-8 5
13-9 4
13-10 3
13-11 2
13-12 1
13-13 0
14-0 14
14-1 13
14-2 12
14-3 11
14-4 10
14-5 9
14-6 8
14-7 7
14-8 6
14-9 5
14-10 4
14-11 3
14-12 2
14-13 1
14-14 0

Understanding Addition & Subtraction

Term Definition
part one piece of a whole
plus added to
sum the amount in all after you add
add join groups together
addition sentence sentence showing numbers added together to equal a sum example: 3 + 4 = 7
digit single number (0,1,2,3,4,5,6,7,8,9) All numbers are created using these digits.
equal means "the same as"
whole two or more parts added together
join put together
difference the amount that is left after you subtract
minus to take away or subtract
subtraction sentence sentence showing numbers subtracted to equal a difference example: 8 – 4 = 4
subtract find out how many are left or which group has more
separate can mean to subtract
fewer having a lesser amount
more a group with a greater number
related addition and subtraction sentences with the same numbers
fact family a group of related addition and subtraction facts

Number Sense: Addition and Subtraction

Term Definition
addends Numbers added together to give a sum. Example: 7 + 5 = 12, 7 and 5 are addends
sum The answer when adding two or more addends. Example: 7 + 5 = 12, 12 is the sum
Commutative (Order) Property of Addition Numbers can be added in any order and the sum will be the same. Example: 5 + 3 = 3 + 5
Associative (Grouping) Property of Addition Numbers can be grouped in any way and the sum will be the same. Example: (3 + 2) + 4 = 3 + (2 + 4)
Identity (Zero) Property of Addition The sum of zero and any number is that number. Example: 0 + 4 = 4
difference The answer when subtracting two numbers. Example: 7 – 2 = 5, 5 is the difference
fact family A group of related facts using the same numbers. Example: 5 + 3 = 8, 3 + 5 = 8, 8 – 3 = 5, and 8 – 5 = 3
round Finding a number closest to a specific place value. We use round numbers when we do not use an exact number. Example: 27 rounds to 30
estimate To give a number or answer that tells about how many or how much.
compatible numbers Numbers that are easy to add, subtact, multiply, or divide mentally.
equation A number sentence that uses an equal sign (=) to show that the value to its left is the same as the value to its right. Example: 6 + 5 = 10

Subtraction facts from 18

Problem Answer
9-7 2
4-1 3
11-8 3
10-6 4
9-8 1
6-3 3
5-4 1
8-3 5
4-1 3
2-1 1
9-7 2
6-5 1
10-7 3
7-6 1
11-7 4
7-3 4
10-2 8
11-9 2
9-3 6
13-6 7
15-6 9
13-5 8
13-6 7
10-4 6
11-3 8
8-4 4
9-3 6
4-0 4
7-6 1
8-7 1
14-9 5
9-7 2
8-6 2
12-3 9
13-9 4
12-9 3
13-5 8
8-2 6
5-2 3
11-2 9
4-1 3
9-5 4
10-3 7
11-3 8
10-8 2
5-2 3
6-4 2
8-5 3
6-4 2
3-0 3
7-2 5
14-6 8

Adding and Subtracting Whole Numbers

Question Answer
Mary has 15 red apples in her basket. Brittany gives her 9 more apples. How many total apples does she have in her basket? 24 apples
Lily gathered 10 potatoes from her mothers garden. She then ate 4 of them for dinner. How many potatoes does she have left? 6 potatoes
65 + 23 = ? 88
When you add two numbers together, what is the answer called? Sum
When you subtract two numbers, what is the answer called? Difference
Brad had 37 pieces of paper in his notebook. He gave Scott 10 pieces of paper for his homework. How many pieces of paper does Brad now have? 10 pieces of paper
What place value comes after the ones place? Tens
What place value comes after the tens place? Hundreds
Jamie has 4 crayons to color her picture. She asks to borrow 16 crayons from Elizabeth to finish her work. How many total crayons are there between the two girls? 20 crayons
29 – 14 = ? 15

Wirtz Plane Geometry Carnegie Lesson 1.2

Term Definition
Rectangle (p13) A parallelogram with four right angles.
Width of a rectangle (p13) The side to side measurement of a rectangle May also be called the base.
Length of a rectangle (p13) The top to bottom measurement of a rectangle. May also be called the height.
Base of a geometric figure (p13) The side or face to which an altitude is drawn, or is considered to be drawn.
Height of a parallelogram (p13) The length of a perpendicular line segment that connects one of the corners of the parallelogram to the opposite side.
Parallelogram (p13) A quadrilateral in which both pairs of opposite sides are parallel.