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Number Sense #1
供稿人: Sjoberg
.17 = 
%
6714+982 =
30% =
fraction
429-277=
20
7
=
Don't put in a leading zero.
decimal
5
2
=
%
1818÷6=
11×436=
Don't put in a comma
4×999=
Don't put in a comma
17+24+62+19+81 =
142

=
7
8
-
4
3
=
2
3
2
×
3
1
3
=
common fraction
28×25=
Which is larger,
8
7
or
6
7
?
286÷9 has a remainder
of
47 nickles = $
12
1
2
×
16
=
Estimate 203×302 to
the nearest thousand
Don't include a comma
16 milliliters = 
Don't include a leading zero
liters
13 inches = 
common fraction
feet
3
1
3
%
=
Common fraction
The mean of 48, 46, 
49, and 49 is
452
=
no comma
11+ (-2) - 3 =
The sum of the interior anglesof a hexagon is
13÷2
2
1
=
common fraction
If 6n + 7 = 31,
then n = 
3
1
2
×
12 =
Estimate 4.6 × 3.8 ×2.1 × 5 to the nearest ten.
The area of a square with side 
3
4
is
50 x 264 =
no comma
If 
5
8
=
x
3
, then x =
common fraction
The supplement of a 
47 degree angle is
degrees
58 × 52 =
278 = 
base 10
The cost of driving a car 80 miles at $0.25 per mile is $
98 × 98 =
no comma
6
3
2
×
6
1
3
write as a mixed number in forma b/cExample: 32 5/6
=
Estimate π5 to the 
nearest hundred.
16
2
3
×
36
=
8
3
1
×
4
1
3
write as a mixed number in forma b/cExample: 32 5/6
=
24×6 + 6× 76 =
.444... =
common fraction
262 - 242=
{s,m,i,t,h} has

subsets
24 is one and a third of
1+2+3+...+15+16 =
102×106 =
no comma
Estimate 4.64 to the
nearest ten.
16×32=
The side of a square
with diagonal 9√2 is
18 is
20?
% less than
Adding 35% of a
number is the same as
multiplying the number
by
decimal form
If 1/7 + 1/3 = 1/x,
then x =
decimal answer
24base 10 =
base 7
If f(x) = 5x - 7, then
f(-1) =
The geometric mean
between 1 and 4 is
The number of positive
fractions in lowest
terms with denominator
of 10 is
Estimate 142857 x 54
to the nearest million
million
1 foot =
inches
111×235=
no comma
The surface area of a
cube with inner diagonal
3 is
82 + 242=
The slope of the line
passing through
(2,7) and (-1,10) is
√27 simplified is
Use sqrt for square root & don't use spaces.
Example: 5sqrt2
If 24base b = 18base 10,
then b =
If the hypotenuse of a
30-60-90 triangle
measures 12, then its
short leg measures
3367×15=
no comma
√31,000 to the
nearest multiple of 25
7
4
+
7
4
=
common fraction
The volume of a sphere
with radius 3 is
Express your answer in terms of π (already included)
π
998×997=
no comma
13
11
÷
13
=
common fraction
The slope of the line
2y = 4x + 8 is
5! = 
23base5 + 14base5 =
base 5
1 yd3 =
in3
10-9=
to the nearest integer
123÷7
2
7
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