Count Backwards from 100 by 1's | Exercise and Count | Jack Hartmann Countdown From 100
Oral starter
Count backwards from any given number to 100 using 100 square and flip counter. (Yellow group try counting back from numbers up to 125)
On the 100 splat square click enable editing, slideshow then from beginning.
Use a number line or 100 square to count back to find the answer to the subtraction calculation. You can copy the sums into your green books if you prefer not to print the sheets.