Squares & Cubes
What is the area of a square with length of 7cm and width of 7cm?
49cm2
Mental Math
333-123-300
-90
MENTAL MATH
17+71+170 =
258
MENTAL MATH
14 x 14
196
How many tens are in this number?
721
72
I’m tall when I’m young, and I’m short when I’m old. What am I?
A candle
What is the perimeter of a rectangle with one length of 16 cm and a width of 22 cm
76 cm
MENTAL MATH
673-563-400-10
-300
MENTAL MATH
-155 + 145 = ?
-10
Mental Math
500 x 9 =
4500
How many hundreds are in this number?
2,473
24
The more of this there is, the less you see. What is it?
The darkness
What is the area of a rectangle with the length of 12m and a width of 13m
156m2
Mental Math
601 - 33 =
568
MENTAL MATH
298 + -399 =
-101
Mental Math
(-8) x (-2) x 3 =
48
how many tens are in this number?
739,272
73,927
What is black and white and red all over?
A newspaper
Mental Math
112+12+118+8
250
0.498 x 1000
498
MENTAL MATH
63 + __ = 131
68
Mental Math
12 x 18 x 2 =
432
How many hundreds and how many tenths are in this number?
92,487.6
924 hundreds and 876 tenths
What has legs but doesn't walk?
A table
What is the area of a rectangle that has the length 15m and the width 20m?
Add (+) two tenths and five hundreds to this number:
387.64
887.84
130+250+3099+13
3492
950x550
522500
how many thousands, tens and hundredths are in this number?
16,072.87
What building has the most stories?
The Library