Addition
Mental Math
In a school, there are 12 students in the art club,13 students in the music club, 17 students in the drama club, 8 students in the science club, but 3 students who left the science club. How many students are there in total across all these clubs?
12+13+17+8-3= 47 students
MENTAL MATH
(5-1)-(10-6)
(4)-(4)=0
MENTAL MATH
5+545-30
520
MENTAL MATH
3(2 x 8)
48
MENTAL MATH
630/7
90
MENTAL MATH
63+33
63= 216 33= 27
216 +27= 243
=243
Mental Math
If a child is 4 years old and 8 weeks, how many days old are they?
(hint, how many days are in a year and how many days are there in a week?)
4x 365 = 1460
8 x 7 = 56
1460+56= 1516 days old
MENTAL MATH
(60-10)- (40-15)
(50)-(25)= 25
MENTAL MATH
Kamaya is trying to balance her budget for the month. She starts with $98 in her account. She receives an additional $22 from a friend, but then she spends $16 on groceries and $24 on a new book. Later, she receives another $22 as a gift. How much money does Kamaya have in her account now?
Kamaya has $102 in her account
MENTAL MATH
2(9 x 5 x 2)
180
MENTAL MATH
800/5=
160
MENTAL MATH
64=X3
Find X
43
4x4x4= 64
Mental Math
Ashanti is planning a big family reunion and wants to make sure she has enough snacks for everyone. She starts by buying 713 bags of chips. Then, she buys 550 cookies, 32 packs of juice, 20 boxes of crackers, 21 bags of popcorn, and 2 cakes. How many items did Ashanti buy in total?
Ashanti bought 1338 items.
MENTAL MATH
81-17=
64
MENTAL MATH
5,678+9,234
14,912
MENTAL MATH
160 x 5
800
MENTAL MATH
If there are 52 weeks in a year and four seasons (winter, spring, summer, fall), Approximately how many weeks are in each season?
13
MENTAL MATH
729=X3
Find X
X=93
9x9x9= 729
Mental Math
How many weeks are included in 5 calendar years?
(hint, 52 weeks are in a year)
5 x 52 = 260
MENTAL MATH
10,000- 999=
NO CALCULATOR
10,000-999= 9001
MENTAL MATH
7,890+1,234-5,678=
3,446
MENTAL MATH
How many hours are in 3 years?
365 days in 1 year
24 hours in 1 day
365x24 =8,760 hours
8,760 x 3 = 26,280 hours
MENTAL MATH
How many days are in 7,200 minutes?
HINT: 7,200/60 m.../....h =
7,200/60 minutes = 120 hours
120 hours/24 hours in a day=
5 DAYS
MENTAL MATH
53
125
Mental Math
In a school fundraiser, the students collected $805 on the first day, $49 on the second day, $6 on the third day, and $245 on the fourth day. How much money did the students collect in total over the four days?
MENTAL MATH
71,483-45,302=
26,181
MENTAL MATH
In a community garden, volunteers planted 10 flowers on Monday and 13 flowers on Tuesday. On Wednesday, 3 flowers were damaged by pests, and 1 flower wilted. On Thursday, they planted 31 more flowers, and on Friday, they planted 37 more flowers. However, on Saturday, 20 flowers were damaged by a storm, and 4 flowers wilted. Finally, on Sunday, they planted 12 more flowers.
There are 75 flowers in the garden.
MENTAL MATH
Zuhr has 11 rows of apple trees. Each row has 4 trees, and each tree produces 9 apples. How many apples can Zuhr harvest in total?
Zuhr can harvest 396 apples
MENTAL MATH
James has a collection of 165 marbles. He wants to divide them equally among 33 of his friends. How many marbles will each friend receive?
Each friend receives 5 marbles.
MENTAL MATH
What CUBED number will give you 1000?X3= 1000
Find X
X3= 10x10x10
10x10x10=1000
103= 1000