 # Mental Math Workouts name:…………………… 3, 7, 11, 15, ,

```Mental Math Workouts - Set 1
1. 2 1/3 =
name:……………………
8m
/3
14.
2. 43 ÷ 7 =
3. Complete the series:
,
12
15.
m
10
x 2 = 24
4
Use a protractor
to measure angle
ABC.
∠ABC =
°
TIM
ROB
0
STUDENT
16.
B
A
8. Circle the prime numbers:
This shape is a Triangle Pentagon Trapezoid
and has
parallel sides.
1, 4, 5, 7, 9, 11, 12
A
9. Write 3 consecutive
numbers in the boxes:
17. The 3 interior angles of
any triangle
°.
this shape:
18.
FALSE
12. This liter container
holds
mL.
1L
500 mL
A
70°
C
80°
30°
B
A diameter is a straight
line passing through
the center of a circle
and touching the
circumference at 2
points. The length of
the diameter of this
mm.
circle is
39 x 7 = 7 x 39
TRUE
books
more than
May.
2
SAM
C
7.
/
6
MAY
6. 3/8 + 1/8 + 2/8 + 1/8 =
8
TOM
5. 2 x 3 x
4. 1/5 x 5 =
13.
1
2
m2.
Area of shape B =
3, 7, 11, 15,
11.
2
B
19. Use your ruler to find
the perimeter of this
irregular pentagon.
cm.
Perimeter =
20. Draw the next 2 shapes in the series.
They must have the same measurements as
the previous shapes.
This line segment measures:
cm or
Page 10
mm.
Mental Math Workouts
© World Teachers Press ® www.worldteacherspress.com
Mental Math Workouts - Set 2
13.
1. 2 x 3 x
name:……………………
DAY SHIFT
HRS
= 24
10
8
2.
2 7/100
= 2
6
●
worked twice
as many
hours as
4
2
/
.
TIM
RAY
BOB
BILL
SUE
0
TOM
WORKER
4. Circle the 3 factors of 12 in the numbers below:
14. Shade the shape which differs from the others.
1, 5, 7, 4, 8, 6, 9, 14
5. Circle the 3 composite numbers:
2, 3, 8, 11, 14, 17, 21
6. The expanded numeral for
53 =
A
B
C
D
E
F
15.
6m
6m
.
16. Can you draw over this shape
without going over the same
lines twice (in other words, is
it traversable?).
7. How many minutes from 6:30 a.m. to 0930 hours?
minutes.
8. This is a math array:
17.
Draw a different array for 6:
The circumference of a circle
= π x diameter (π is 3.14).
Measure the diameter and find
the circumference of this circle.
cm
r
ete
m
a
Di
9. The difference between 15 x 8 and 8 x 15 is:
(a) 15
(b) 8
(c) 0
(d) 23
for the big dot:
10. Write 3,004,006 in words:
www.worldteacherspress.com
B
C
D
E
20.
A
Shape
®
2
Draw a diagonal in this
rectangle and then
measure it.
mm.
Diagonal =
.
12. A chord is a straight line
joining 2 points on the
circumference of a circle.
Draw a chord inside this
circle.
3
A
19.
The sides of an equilateral
triangle are
4
1
.
11.
m2.
Mental Math Workouts
B
has the longer perimeter.
Page 11
Mental Math Workouts - Set 1 Review
1. 33/4 =
/ 4 + 7/4
2. 56 ÷
= 6r2
15.
name:……………………
1,400
FRUIT PRODUCTION
1994
TONS
1,000
600
3. Complete the series:
200
AB7, BC14, CD21, DE28,
A
4. 1/4 x 9 =
5. 3 x 2 x
/
Farm
6. 5/12 + 3/12 + 5/12 =
7. Use a protractor
to show ∠ABC is
(a) 70°
(b) 65°
(c) 80°
(d) 75°
8.
9.
10.
11.
1/
C
D
E
FARM
F
G
produced 3 times as much fruit as farm
16.
x 3 = 36
B
.
This is an irregular
with
congruent sides
(ruler needed).
12
A
17. The interior angles of any
triangle total 180°.
C
∠ABC =
°.
C
22°
28°
B
18. A diameter is a
straight line
passing
Circle the composite numbers below:
through
2, 7, 9, 11, 14, 19, 20
the
center of
Write 3 consecutive odd numbers in the boxes.
a circle
and
touching
the
circumference at
two points. It is
2
2
(a) 64 mm (b) 32 mm (c) 21/2 cm (d) 41/2 cm
12 x /3 = /3 x 12
TRUE
FALSE ?
B
12.
250 mL
250 mL
A
19. The perimeter of this irregular
hexagon is approximately:
(a) 17 cm
(b) 20 cm
(c) 140 mm
(d) 100 mm
These 2 containers
hold
liters
altogether.
13.
14. Area of A =
cm2.
cm or
mm.
20. In the box draw the next shape in the series. It must
have the same measurements as the others.
A
11/4 cm
This line measures
5 cm
Page 22
Mental Math Workouts
© World Teachers Press ® www.worldteacherspress.com
Mental Math Workouts - Set 2 Review
14.
EXPORTS 1994
F
E
x 4 = 48
PORTS
1. 6 x
name:……………………
2. 63/1,000 = 0.
D
C
B
A
/
0
5. Circle the 3 composite numbers which are also
factors of 48.
5, 6, 8, 10, 16, 20, 28
6.
Index
Notation
Expanded
Numeral
Common
Numeral
Complete
the table.
52
2x2x2
400 600
TONS
The bar graph show that Port
as much as Port
in 1994.
4. Circle the 4 factors of 51 in the numbers below:
1, 2, 3, 7, 13, 17, 51
200
800
1000
exported 3x
15. A chord is a straight line joining
2 points on the circumference
but not passing through the
center of a circle.
Draw a 2-cm chord inside this
circle.
16.
Is this shape
traversable?
36
7. How many minutes from
11:30 a.m. to 1415 hours?
mins.
8. Draw the other 3 arrays for 8.
17. The circumference of a
circle = π x diameter
(π is 3.14). Find the
circumference of
this circle below.
Circumference
9. The difference between 3/4 x 5 and 5 x 3/4 is:
(b) 5
(c) 10
(d) 0
(a) 3/4
10. Write three hundred four thousand twenty in figures:
=
cm.
18. Give the
for the large dot:
d
c
b
a
11. The sides and angles of an
equilateral ∆ are congruent.
°.
Each angle =
A
19.
which differs
from the others.
13.
2m
=
C
D
E
F
The diagonal in this rectangle
measures
mm.
20. Shape
2m
B
has the longer perimeter.
A
B
m2.
8m
Mental Math Workouts
Page 23
``` # Name: __________________________________________________________________ Period: ___________________ # Lesson 10-1 Circles and Circumference with answers.notebook # Handling Difficult Situations! (or how to improve working relations) # Wk9-S Describe the effect of each change on the area of the given 