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Negative Decimals on a Number Line
Select the skills to practice, and then click Go!
Foundational skills
Find step size (Adjacent)
\[ -1.4 \leftrightarrow -1.2 \]
Work out step size from two adjacent dashes.
Find step size (First & Last)
\[ -1.5 \dots \dots \dots 1.0 \]
Work out step size from first and last dashes.
Steps of 0.1 (negative decimals)
First two given
\[ -0.7, -0.6 \dots \]
Count forwards in steps of 0.1.
First and last given
\[ -0.5 \dots \dots \dots 0 \]
Find middle value in steps of 0.1.
Two separated (find later)
\[ -0.4 \dots \dots 0 \dots \downarrow \]
Find number from separated values.
Two separated (find earlier)
\[ \downarrow \dots -0.2 \dots 0.1 \]
Count backwards in steps of 0.1.
Steps of 0.2 (negative decimals)
First two given
\[ -1.2, -1.0 \dots \]
Count forwards in steps of 0.2.
First and last given
\[ -0.8 \dots \dots \dots 0.2 \]
Find middle value in steps of 0.2.
Two separated (find later)
\[ -0.6 \dots \dots 0.2 \dots \downarrow \]
Find number from separated values.
Two separated (find earlier)
\[ \downarrow \dots -0.4 \dots 0.2 \]
Count backwards in steps of 0.2.
Steps of 0.5 (negative decimals)
First two given
\[ -2.0, -1.5 \dots \]
Count forwards in steps of 0.5.
First and last given
\[ -2.0 \dots \dots \dots 0.5 \]
Find middle value in steps of 0.5.
Two separated (find later)
\[ -1.5 \dots \dots 0.5 \dots \downarrow \]
Find number from separated values.
Two separated (find earlier)
\[ \downarrow \dots -1.0 \dots 0.5 \]
Count backwards in steps of 0.5.
Steps of 1 with decimal start
First two given
\[ -3.5, -2.5 \dots \]
Count forwards in steps of 1.
First and last given
\[ -2.5 \dots \dots \dots 2.5 \]
Find middle value in steps of 1.
Two separated (find later)
\[ -1.5 \dots \dots 1.5 \dots \downarrow \]
Find number from separated values.
Two separated (find earlier)
\[ \downarrow \dots -0.5 \dots 2.5 \]
Count backwards in steps of 1.
Steps of 2 with decimal start
First two given
\[ -5.5, -3.5 \dots \]
Count forwards in steps of 2.
First and last given
\[ -4.5 \dots \dots \dots 5.5 \]
Find middle value in steps of 2.
Two separated (find later)
\[ -3.5 \dots \dots 2.5 \dots \downarrow \]
Find number from separated values.
Two separated (find earlier)
\[ \downarrow \dots -1.5 \dots 4.5 \]
Count backwards in steps of 2.
Special cases
Identify which dash is 0
\[ -0.6 \dots 0.2 \]
Find zero on the line.
Estimate position
\[ -1.0 \dots \downarrow \dots 0 \]
Estimate value between dashes.
Continue sequence
\[ -0.8 \dots -0.3 \rightarrow ? \]
Find next numbers after line ends.
Timer (Optional)
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Question