1.Today we kept doing friendship in philosophy.
2.We kept doing fun math like 95 x 96. See if you can solve this: 97 x 98
3.We had a fun free time.
4.In Art most of us finished our animal tiles!
Come see our poster when we announce it!
The above was written by this week’s wonderful bloggers, D and R. They asked me to post instructions for doing the trick for multiplying, so I’m adding that. These instructions probably won’t make sense…
If the number is lower than a target number (in the above problem, it’s lower than 10) put the number needed to make that target in a circle below.
For example, in 97 x 95, you’d write it like this:
Then cross subtract to get 92. The first two digits of the answer are 92.
Then multiply the numbers below the problem. Here, it’s 3 x 5, so it’s 15. 15 is the last two digits of the answer… so 97 x 95 is 9215. Some students can do it all rapidly in their heads!!!
If you’re doing numbers Above 100, you put the difference between the number and 100 Above the numbers.
Take 105 x 107
105 x 107
next, cross Add… you get 112. Put two zeroes at the end so you get 11200.
Then add 35 (5 times 7) = 11235
Have a great weekend!