Page 42 - STEPS MATHEMATICS 4A
P. 42
calculator
Use only the arrowed keys
on your calculator.
a Choose digits to go here.
b Make the calculator display as many different answers as you can.
c Record each subtraction.
Here's one example: I
312 - 45 = 267 i
Write headings like these
and put your subtractions under each heading.
Compare results with your friends
