Table:
0
A
B
C
D
E
F
1
Type
Actual Exponent
Exp (biased)
Exponent field
Significand (fraction field)
Value
2
Zero
−127
0
0000 0000
000 0000 0000 0000 0000 0000
0.0
3
Negative zero
−127
0
0000 0000
000 0000 0000 0000 0000 0000
−0.0
4
One
0
127
0111 1111
000 0000 0000 0000 0000 0000
1.0
5
Minus One
0
127
0111 1111
000 0000 0000 0000 0000 0000
−1.0
6
Smallest denormalized number
−127
0
0000 0000
000 0000 0000 0000 0000 0001
±2 −23 × 2 −126 = ±2 −149 ≈ ±1.4 × 10−
7
"Middle" denormalized number
−127
0
0000 0000
100 0000 0000 0000 0000 0000
±2 −1 × 2 −126 = ±2 −127 ≈ ±5.88 × 10−
8
Largest denormalized number
−127
0
0000 0000
111 1111 1111 1111 1111 1111
±(1−2 −23 ) × 2 −126 ≈ ±1.18 × 10−
9
Smallest normalized number
−126
1
0000 0001
000 0000 0000 0000 0000 0000
±2 −126 ≈ ±1.18 × 10−
10
Largest normalized number
127
254
1111 1110
111 1111 1111 1111 1111 1111
±(2−2 −23 ) × 2 127 ≈ ±3.4 × 10
11
Positive infinity
128
255
1111 1111
000 0000 0000 0000 0000 0000
+∞
12
Negative infinity
128
255
1111 1111
000 0000 0000 0000 0000 0000
−∞
13
Not a number
128
255
1111 1111
non zero
NaN
14
* Sign bit can be either 0 or 1.
* Sign bit can be either 0 or 1.
* Sign bit can be either 0 or 1.
* Sign bit can be either 0 or 1.
* Sign bit can be either 0 or 1.
* Sign bit can be either 0 or 1.

Questions and formulas:
Question: What value has negative infinity?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="negative infinity"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,A2:A14="negative infinity"),6))
Level: medium
Question: What's the type of 0.0 value?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1=0),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,F2:F14=0),1))
Level: medium
Question: What's the Significant of a value 1.0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1=1),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,F2:F14=1),5))
Level: medium