Published at Friday, 06 September 2019. addition worksheet. By Nathalie Perrot.
Once your child has learned one specific addition strategy for one specific group of facts, she’ll still need some practice before she’s able to use the strategy fluently.
+9 facts (purple)
The best kind of abacus has each five beads in alternating colors, like the abacus from Schelling you see on the right.
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