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[I] Find four consecutive numbers
which total:
a 206 b 78
c 130 d 182.
Show all your workings-out.
• Investigate. Does this always work
with three consecutive numbers?
5 x 5+ = 25 • Trial examples using a range
of numbers.
4 ~6 • Write what you find out.
\ 4 x 6 = 24
@] · • True or false? Investigate.
• Write what you find out.
CHALLENGE
• 5, 7, 9 and 11 are four consecutive alternate numbers.
• Find five consecutive alternate numbers which total:
a 45 b 90 c 180 d 125.
• Can you think of a quick way to find the five numbers without having
to add them?
I STEPS 5:13 1
