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Magic of Adding Numbers with Anti-Nines

Step 1: Have someone pick a large number with any number of digits.

Subtraction Magic of Nines — Longevity Calculator

Last week we explored the concept of difference by subtracting birth year from death year to calculate the longevity of scientists and mathematicians. The K-1st graders subtracted using standard algorithm with no borrowing and the older students mastered both borrowing and subtracting with adding.

Longevity — Life Expectancy — Scientists and Mathematicians — Subtraction Standard Algorithm and Addition Method

After reading 15 math challenge poems from the world’s greatest poets, the children were interested in their biographies.

Poetry Math Challenges and Problem Solving

I was surprised to learn this week how many of your children love poetry. A generous Mathlete parent gave me a book of math poems and I learned that many of my favorite authors also love math. The attached pdf has 15 short biographies of major poets including Poe, Lear, Dickinson, Lewis Carroll, Whitman, Frost, Milne, Nash, Williams, Ciardi, Hughes, and Silverstein.

INTERNET ACTIVITY EVERY MINUTE: Multiples, x60, x24, x7, x52

Every minute of every day: