Page 7 Math Problems 55 - 63
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Math Enrichment for grades 6-8

Math Enrichment for grades 6-8

Math Enrichment for grades 4-8

Math Enrichment for grades 4-8

Math Enrichment for Elementary kids

Math Enrichment for Elementary kids

Math Enrichment for grades 6-8

Math Enrichment for grades 6-8

Math Enrichment for Middle School

Math Enrichment for Middle School

Math Enrichment for Upper Elementary

Math Enrichment for Upper Elementary

Math Enrichment for Middle School

Math Enrichment for Middle School

Math Enrichment for Middle School

Math Enrichment for Middle School

Math Enrichment for grades 6-8

Math Enrichment for grades 6-8

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Math Enrichment for Middle School

Prime numbers and Units digit Math Ans: b) No It cannot be a prime number because the units digit of 3^102 is 9 and 9-4=5. Since 3^102 - 4 has a unit digit of 5 it has to be a multiple of 5 and cannot be a prime number.