Should I be concerned that my dd mixes up, doesn't remember how to write numbers

[CalicoKat]

12, 13, 14, 15, 16, 17, 18 19?

She can say the number right, but it's always written backwards. I've corrected each time, erase them and ask her to write them again but it's always the same. We're using MUS but we never did the "onety-two" approach because I thought it was confusing . . . if I start this with her do you think I'd be confusing her even more?

Also when you ask her to write 30, 40, 50, 60, 70 etc. She writes them 51, 61, 71, 81 etc. She can generally self-correct when I point this out. Mostly I'm concerned about the above.

Thanks for your thoughts!

[Tracey in TX]

How old is DC?
If she's young, think about how we say the number "sixteen, seventeen", etc. The numbers we say are backwards to how they are written. It will require rote memorization and practice. No worries :)

[CalicoKat]

thanks.

[Mrs Mungo]

thanks.

If you were to say "your twelve is backwards." Can she find the problem number and fix it herself? If so, I wouldn't worry about it. She's still fairly young.

If you want to try and explain it to her better try using a number chart with base ten blocks or something. You can even do this simply by making a chart on a piece of paper with a ones column and a tens column. Put individual popsicle sticks in the ones column and bundles of ten popsicle sticks (boung witha rubber band) in the tens column. Explain that 16=1 ten and 6 ones.