Vocabulary
Algebra is?
(a) Letters or symbols used in fact families.
(b) Letters or symbols used for missing numbers.
(c) Numbers we use to subtract from an equation.
(b) Letters or symbols used for missing numbers.
What is the fact family of 6, 12, and 18?
6 + 12 = 18
12 + 6 = 18
18 - 12 = 6
18 - 6 = 12
Sara baked thirty-six gingerbread men cookies, two strawberry-flavoured cakes, and forty-one chocolate-chip cookies. How many cookies did she bake in all?
thirty-six gingerbread men cookies + forty-one chocolate-chip cookies,
36 + 41 = 77
Sara baked 77 cookies in all.
98 + 17 =
115
56 - 13 =
43
Addends are?
(a) Numbers subtracted in a number sentence.
(b) Numbers multiplied and divided in an equation.
(c) Numbers added in a number sentence.
(c) Numbers added in a number sentence.
What is the fact family of 12, 24, and 36?
12 + 24 = 36
24 + 12 = 36
36 - 12 = 24
36 - 24 = 12
James has three Math, two English, four Chinese, and three Science homework assignments to do over the holiday period. He has already finished two Math and one Chinese homework assignment. How many homework assignments does he have left to do?
Math (3 - 2) + English 2 + Chinese (4 -1) + Science 3
= 1 + 2 + 3 + 3 = 9
James has 9 homework assignments left to do.
87 + 87 + 0 =
174
(54 - 16) - 8 =
30
A fact family is?
(a) A set of related multiplication numbers that use the same numbers.
(b) Numbers used instead of algebra equations.
(c) A set of related addition and subtraction numbers that use the same numbers.
(c) A set of related addition and subtraction numbers that use the same numbers.
What is the fact family of 36, 48, and 84?
36 + 48 = 84
48 + 36 = 84
84 - 48 = 36
84 - 36 = 48
Tom cycled 30 kilometres on Thursday, 45 kilometres on Friday, and 91 kilometres on Saturday. How many more kilometres did he cycle on Saturday than Thursday and Friday?
Thursday = 30km + Friday = 45km
Saturday = 91km
91 - (30 + 45) = 16
Tom cycled 16 more kilometres on Saturday than Thursday and Friday.
(23 + 44) + (7 + 20) =
94
(97 - 23) - (44 - 16) =
14
Order property of addition means?
(a) You can add two or more numbers in any order and get the same sum.
(b) You can use letters or symbols instead of numbers in any order.
(c) You can subtract two or more numbers in any order and get the same sum.
(a) You can add two or more numbers in any order and get the same sum.
What is the fact family of 49, 49, and 98?
49 + 49 = 98
98 - 49 = 49
A bus has seventy passengers on it. At the first stop, eight passengers get off, and two passengers get on. At the second stop fourteen passengers get off and nine passengers get on. How many passengers are now on the bus?
First stop: 70 - 8 + 2 = 64
Second stop: 64 - 14 + 9 = 59
There are 59 passengers on the bus now.
(56 + 0) + (85 + 9) + 13 =
163
(91 - 32) - 76 =
- 17
Grouping property of addition means?
(a) You can group algebra in the same way to subtract and still get the same sum.
(b) You can group addends in different ways and still get the same sum.
(c) You can group addends in inverse operations before multiplying together to get the same sum.
(b) You can group addends in different ways and still get the same sum.
What is the fact family of 44, 45, and 89?
44 + 45 = 89
45 + 44 = 89
89 - 45 = 44
89 - 44 = 45
Alice is 158cm tall now. Two years she grew eight centimetres, last year she grew thirteen centimetres, and this year she has grown eleven centimetres. How tall was she two years ago?
158 - 11 = 147
147 - 13 = 134
134 - 8 = 126cm
Alice was 126cm (or 1.26m) tall two years ago.
(76 + 98) + 67 + (9 + 28) =
278
(88 - 9) - (32 - 6) - 89 =