Number Sense and Operations
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Manaakitanga Test 1
Part 1: Whole Numbers and Powers
a) 10,000 = 10^____
b) 1,000,000 = 10^____
c) 10^4 = ____________________
a) 10,000 ______ 10^4
b) 7 × 10^3 ______ 6,999
c) 10^5 ______ 99,999
√81 is:
Which number is prime?
a) Which numbers are divisible by 3? 246, 250, 315
Answer: ____________________
b) Is 1,248 divisible by 2, 4 and 8? Explain briefly.
HCF: ________ LCM: ________
Part 2: Integers and Number Lines
________________________________________________________________
a) The additive inverse of −12 is ________.
b) The additive inverse of 8 is ________.
c) −4 + 9 = ________
d) 3 − 11 = ________
Part 3: Rounding and Estimation
0.73 + 0.8 + 0.999 ≈ ____________________
Is the exact answer less than 3? Explain why.
Estimated cost: $____________________
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