MENTAL MATH - INVEST 5 to LESSON 60 Flashcards
1
Q
Count by 7’s from 7 to 84
A
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
2
Q
(8 x 200) + (8 x 25)
A
1,800
3
Q
565-250
A
315
4
Q
58 + 27
A
85
5
Q
$1.45 + $0.99
A
$2.44
6
Q
1/2 of $25.00
A
$12.50
7
Q
5000/10
A
500
8
Q
8 x 9, + 3, ÷ 3, - 1, ÷ 3, + 1, ÷ 3, ÷ 3
A
1
9
Q
Round $31.748 to the nearest cent.
A
$31.75
10
Q
Count by 12’s from 12 to 132
A
12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132
11
Q
4 x 68
A
272
12
Q
64 - 29
A
35
13
Q
$4.64 + $0.99
A
$5.63
14
Q
$15.00 + $7.50
A
$22.50
15
Q
1/2 of 5
A
2 1/2 or as a decimal 2.5
16
Q
8 x 8, - 4, ÷ 2, +2, ÷ 4, + 2, ÷ 5, x 10
A
20
17
Q
5 x 10, + 4, ÷ 6, x 8, + 3, ÷ 3
A
25
18
Q
Count by 12’s from 12 to 132
A
12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132
19
Q
4 x 250
A
1000
20
Q
368 - 150
A
218
21
Q
250 + 99
A
349
22
Q
$15.00 + $7.50
A
$22.50
23
Q
1/2 of 5
A
2 1/2 or as a decimal 2.5
24
Q
20 x 40
A
800
25
5 x 10, + 4, ÷ 6, x 8, + 3, ÷ 3
25
26
Alycia averaged 88% on her first three tests. What score does she need on her fourth test to have a four test average of 90%?
90% x 4 = 360%
360% - (88% x 3) = 96%
27
Count by 9's from 9 to 108
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108
28
8 x 225
1800
29
256 + 34
290
30
250 - 99
151
31
$25.00 - $12.50
$12.50
32
Double 2 1/2
5
33
800/20
40
34
10 x 10, - 20, + 1, ÷ 9, x 5, - 1, ÷ 4
11
35
6 x 250
1500
36
736 - 400
336
37
375 + 99
474
38
$8.75 + $5.00
$13.75
39
1/2 of 9
4.5 or 4 1/2
40
30 x 30
900
41
8 x 8, - 1, ÷ 9, x 7 + 1, ÷ 5, x 10
100
42
Count by 7's from 7 to 84
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
43
8 x 325
2600
44
329 + 50
379
45
375 - 99
276
46
$12.50 - $5.00
$7.50
47
Double 3 1/2
7
48
600/20
30
49
8 x 5, + 2, ÷ 6, x 7, + 7, ÷ 8, x 4, ÷7
4
50
Half of a gallon is a half gallon. Half of a half gallon is a quart. Half of a quart is a pint. Half of a pint is a cup.
How many cups of water equals a gallon of water?
1 pint = 2 cups
1 quart = 2 pints = 4 cups
1 half gallon = 2 quarts = 8 cups
1 gallon = 2 half gallons = 16 cups
51
How many cups are in a gallon?
16 cups
52
How many pints are in a gallon?
8 pints
53
How many quarts are in a gallon?
4 quarts
54
Count up and down by 25's between 25 and 300
25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 300
55
8 x 250
2000
56
462 - 350
112
57
150 + 49
199
58
$3.75 + $4.50
$8.25
59
1/2 of 15
7.5
60
30 x 40
1200
61
10 x 8, + 1, ÷ 9, x 3, + 1, ÷ 4, x 6, - 2, ÷ 5
8
62
Count by 12's from 12 to 144
12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144
63
8 x 425
3400
64
465 + 250
715
65
150 - 49
101
66
$9.75 - $3.50
$6.25
67
Double 4 1/2
9
68
600/30
20
69
2 x 2, x 2, x 2, x 2, x 2, ÷ 8, ÷ 8
1
70
Count up and down by 1/8's between 1/8 and 2.
1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8, 1, 1 1/8, 1 2/8, 1 3/8, 1 4/8, 1 5/8, 1 6/8, 1 7/8, 2
71
2 x 75
150
72
315 - 150
165
73
250 + 199
449
74
$7.50 + $12.50
$20.00
75
1/2 of 25
12.5
76
20 x 50
1000
77
10 x 10, - 1, ÷ 11, x 8, + 3, ÷ 3, ÷ 5
5
78
Count up and down by 3's between 3 and 36.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36
79
4 x 75
300
80
279 + 350
629
81
250 - 199
51
82
$15.00 - $7.75
$7.25
83
Double $1.50
$3.00
84
800/40
20
85
4 x 12, ÷ 6, x 8, - 4, ÷ 6, x 3, ÷ 2
15
86
Count by 7's from 7 to 84
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
87
2 x 750
1500
88
429 - 250
179
89
750 + 199
949
90
$9.50 + $1.75
$11.25
91
1/2 of $5
$2.50
92
40 x 50
2000
93
12 x 3, + 4, x 2, + 20, ÷ 10, x 5, ÷ 2
25
