Order of Operations/Variables
x/7=4
x = 28
x/7 = 4 means x ÷ 7 = 4 and 7 x4 = 28
28/7 =4
Because 28 ÷ 7 = 4
12 x 9
108
27 ÷ 9
3
56/x=7
What's x?
x = 8
56/x= 7 means 56 ÷ x = 7 and 7 x 8 = 56
56/8= 7
Because 28 ÷ 7 = 4
12 x 7
84
49 ÷ 7
7
(35 ÷ 5) × 8 + 89 - 6
139
PEMDAS
(35 ÷ 5) × 8 + 89 - 6
First, brackets: 35 ÷ 5 = 7
Second, multiply: 7 x 8 = 56
Third, add: 56 + 89 = 145
Fourth, subtract: 145-6= 139
89 x 96
8544
85 ÷ 3
28 r 1
81÷ 9 + 5 + 8 + 2 x 55
132
PEMDAS
81 ÷ 9 + 5 + 8 + 2 x 55 =
First, multiply: 55 x 2 = 110
Second, divide: 81/9 = 81 ÷ 9 = 9
Third, add: 9 + 5 + 8 + 110 = 132
59 x 73
4307
89 ÷ 6
14 r 5
The International Cairo Schools Science Fair is happening in April. There are 89 groups who signed up and each group is 25 members. How many team members will be at the International Cairo Schools Science Fair?
89 × 25 = 2225
There will be 2225 students at the International Cairo Schools Science Fair.
Talia loves to watch Netflix in her free time. She watches 56 hours each week. If she watches Netflix for 3 months. How many hours of Netflix will she be watching in all?
90 × 56 = 5040
She will be watching 5040 hours in the 3 months.
There are 3265 attendees (people) at Haya MUN. There are 1512 boy, 1536 girls, and the rest are teachers. If 27 teachers joined at the end of the day. How many teachers attended Haya MUN?
244 teachers attended Haya MUN.
3265 attendees - 1512 boys - 1536 girls = 217 teachers
217 teacher + 27 more teachers = 244 teachers
There are 1233 Candy grams left from last year. There are 500 bags with Sinkers, 63 bags with Mars, and the rest are MNMs. If this year the school will add 263 bags with MNMs. How many bags with MNMs will the school have?
The school will have 933 bags with MNMs.
1233 candies from last year - 500 Sinkers - 63 Mars = 670 MNMs
670 MNMS + 263 MNMs this year = 933 MNMs