TumbleMath Newsletter: June 2019

Greetings Teachers and Librarians!

This is a brand new TumbleMath Newsletter! We're sending it to you now because you're signed up to receive emails from us as part of your subscription! If there's anyone else in your school or library who you think would enjoy receiving these emails, please forward this newsletter to them! They can sign up to receive a copy for themselves by emailing info@tumblebooks.com.

These newsletters will not only keep you up-to-date on TumbleMath developments, but they will highlight some of our amazing books/resources!

We've even included some fun math challenges for you and your kids!

If you have any feedback or suggestions for challenges, trivia, or other features, please feel free to let us know!

If you're not subscribed to TumbleMath yet, now's your chance!! It's the most comprehensive collection of math quizzes and resources, as well as Math picture books in the TumbleBooks format you've come to know and love!

TumbleMath is an incredible value and if you're still on the fence about purchasing a subscription, here's a quick look at the number of resources we offer and how it stacks up against the cost of a subscription:

Featured Books!
Multiply By Hand Less Than Zero Counting With An Abacus

Every student knows that multiplying by 9 can be tricky! But what if there's a trick to help master the number 9 right at the tip of your... fingers?! "Multiply By Hand" teaches readers how to use their fingers when multiplying by nines!

 Perry the Penguin needs 9 clams to buy an ice scooter -- but he's not very good at saving. As Perry earns, spends, finds, loses, and borrows clams, a simple line graph demonstrates the concept of negative numbers. Describes how an abacus can be used as a calculating tool and shows how to use an abacus to add numbers.

 

Did You Know?
What interesting number do you get
when you multiply 111,111,111 × 111,111,111?
12,345,678,987,654,321!!!

 

 

Math Challenge!!

Using the hints below, can you solve this equation?

Extra Hint: Remember your "Order of Operations!"

 

Time Yourself!

How fast can you answer these tricky decimal problems?
Careful! They get harder as they go on!
6.3
+ 8.4

 9.1
+ 9.8

 3.5
+ 12.1

 11.7
+ 4.2

 5.3
+ 8.6

 5.2
+ 7.0

 6.7
+ 9.3

 3.7
+ 4.2
4.8
- 2.4

 7.5
- 6.2

 9.6
- 3.5

 6.9
- 4.7

 8.3
- 3.0

 6.6
- 2.9

 7.4
- 4.5

 3.7
- 2.9
6.32
+ 5.04

 4.08
+ 3.11

 2.67
+ 8.21

 3.23
+ 9.76

 1.96
+ 8.03

 9.13
+ 7.49

 5.79
+ 6.41

 3.34
+ 3.55
8.92
- 7.51

 6.74
- 3.20

 4.89
- 2.47

 7.93
- 2.82

 3.99
- 1.85

 16.15
- 9.04

 4.23
- 2.68

 7.30
- 3.14
4.35
+ 5.79

 5.38
+ 12.02

 10.64
+ 3.72

 8.58
+ 9.53

 7.19
+ 11.84

 13.23
+ 5.76

 9.17
+ 17.05

 5.46
+ 10.78

**Click HERE for the answer Key!