Say What?
Mental Math
14 + 5 = ?
19
On paper
100 - 42
58
On paper
5 + 14 =
19
Mental Math
470 x 0=
Mental Math
3 x 62 =
186
Is defined as a figure formed by two rays having the same endpoint not lying on the same line. It is denoted by the symbol ∠
Angle
How many days are in February this year?
28
On paper
68 - 39 =
29
Om paper
98 + 499 =
597
On paper
12 x 13 =
156
MENTAL MATH
19 x 2=
38
What is " - " this symbol?
Subtraction
Mental Math
6 + 6 + 6
18
On paper
562-191
371
On paper
155 + 245 = ?
400
Mental Math
6 x 7 =
42
MENTAL MATH
12 x 6
72
what is the answer to a multiplication problem called?
the product
Mental Math
6x2
12
On paper
649-318
331
On paper
13 + ___ = 241
228
Mental Math
18 x 9 = ?
162
Mental Math
11 x 6 =
66
Is an angle that is greater than 90° but less than 180°.
Obtuse Angle
On paper
407 x 3
1,221
On paper
72
49
On paper
236-159
77
On paper
2237 + 368 =
2605
On paper
15 x 23 =
345
Mental Math
12 x 9 =
108
Are angles on the same plane that have a common side and a common vertex but no common interior points.
Adjacent Angles
What are the two main properties of Adjacent Angles?
common side
common vertex