Mental Math!
MENTAL MATH
7 x 2 + 5 =
19
Fiona wants to buy a phone charger worth $42.65, she only has a $50 bill.
How much change will she receive?
$7.35
345 + 134 =
479
MENTAL MATH
11 x 3 x 4 =
132
155 x 5 =
775
The operation associated with this symbol "x" in math is
multiply or multiplication
What is perimetre?
The distance around the outside of an object.
MENTAL MATH
25 + 25 + 25 - 25 x 3 =
150
68 - 39 x 3 =
-49
98 + 499 =
597
MENTAL MATH
8 x 9 = ?
72
198 x 2 =
396
What is " * " this symbol?
Multiplying too
If there are 7 squirrels and they each chew 8 trees, how many total trees did they chew through?
56
MENTAL MATH
6 x 8 x 2 =
96
562 - 191 =
371
155 + 245 =
400
MENTAL MATH
6 x 7 X 2 =
84
20 x 8 / 4 =
40
what is the answer to a multiplication problem called?
the product
Which percentage is the same as 11/20?
Posible answers:
11% 20% 40% 55% 65%
55%
MENTAL MATH
3 x 3 x 2 x 4 =
72
649 - 318 =
331
13 + ___ = 241
228
MENTAL MATH
2 x 1 X 3 X 4 =
24
11 x 6 x 3 =
198
What is " $ " this symbol?
Money
Two pizzas cost £19.00. What is the cost of five pizzas?
Possible answers:
£38.00 £45.00 £47.50 £49.00 £57.00
£47.50
MENTAL MATH
79 - 33 =
46
236 - 159 =
77
37 + 68 =
105
MENTAL MATH
8 x 7 x 2 =
112
12 x 6 x 4 / 2
144
What are Mr. Javier and Mrs. Paola Last names?
Izquierdo y Salamanca
Three chocolate bars cost £1.60. What is the
cost of nine chocolate bars?
Possible answers:
£3.60 £4.80 £7.20 £9.60 £14.40
£4.80