Marci Reddish

Regional Math Specialist

[Marci Reddish @marci_reddish]

@melgibsonhq A

[Marci Reddish @marci_reddish]

@pwharris Also 44 x 55 = 2 x 2 x 11 x 55
11 x 55 = (10x55) + (1x55) =605
605 x 2 = 1210
1210 x 2 = 2420

[Marci Reddish @marci_reddish]

@pwharris 11 x 4 x 11 x 5
121 x 20
121 x 2 x 10
242 x 10
2420

[Marci Reddish @marci_reddish]

@pwharris Merry Christmas, Pam! ❤️

[Marci Reddish @marci_reddish]

@openupresources @MathEdLeaders I didn’t see you at NCSM! Dang!

[Marci Reddish @marci_reddish]

@DavidKButlerUoA 5+5+5+5+4+1+1+1+1+1=29
I like this! Especially for 6th grade!

[Marci Reddish @marci_reddish]

@MrBeast Are there books? How about a deck of cards? Then yes!

[Marci Reddish @marci_reddish]

@robertkaplinsky Mint chocolate chip or After 8 when I’m on a cruise ship. 😃

[Marci Reddish @marci_reddish]

@pwharris Pretty much my whole k-12 experience - but I got A’s so I was “great at math.”

[Marci Reddish @marci_reddish]

@woodfamilyhawks Poor Bob.

[Marci Reddish @marci_reddish]

@howie_hua 90+100-6

[Marci Reddish @marci_reddish]

@howie_hua 12+9+2

[Marci Reddish @marci_reddish]

@mwserrano1 @MitchellCanham @GipsonOSU @chenz25 @Sorrell2519 That’s awesome! Way to go, Martin!

[Marci Reddish @marci_reddish]

@pwharris D - It was easier to do it mentally for me once I got one of the factors as a single digit.

[Marci Reddish @marci_reddish]

Do you know how to help your kids with subtraction? I do! Thanks @pwharris !
#ChangeMathClass

[Marci Reddish @marci_reddish]

@pwharris 32 quarters is $8.00.
If 32 x .25 = 8 then 32 x 25 =800 because 25 is 100 times more than .25.
So . . . 800

[Marci Reddish @marci_reddish]

@pwharris I notice it’s close to 2300 and there are 100 23s in 2300.
I also notice it is 46 less than 2300, and there are two 23s in 46.
That tells me there are 100 23s minus two 23s, so there are 98 23s in 2254.

[Marci Reddish @marci_reddish]

@howie_hua Ewwww!

[Marci Reddish @marci_reddish]

@pwharris Fun! Got the diamond!

[Marci Reddish @marci_reddish]

@pwharris