Write the following phrase using mathematical symbols:
eight less than thirteen
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Write the following phrase using mathematical symbols:
When I add $9$9 to $8$8, the answer is $17$17.
When I subtract $8$8 from $15$15, the answer is $7$7.
Connect members of sequential patterns with their ordinal position and use tables, graphs, and diagrams to find relationships between successive elements of number and spatial patterns.