Real Numbers Quiz 2 ( Form 2, Mathematics)

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Test your knowledge of half-open vs half-closed intervals.

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Real Numbers Quiz 2 ( Form 2, Mathematics)


Froggy Jumps Real Numbers Quiz 2 ( Form 2, Mathematics)Online version Test your knowledge of half-open vs half-closed intervals. by YAKILI LMS 1 What describes a half-open interval? a [a,b) b (a,b] c [a,b] 2 Which interval is half-closed on the left? a (a,b] b [a,b] c [a,b) 3 In [3,7), which endpoints are included? a Includes both 3 and 7 b Includes 3 but not 7 c Includes 7 but not 3 4 Which describes a ≤ x < b? a (a,b] b [a,b) c (a,b] 5 For (2,5], which end is closed? a Closed on 2 b Closed on 5 c Open on both ends 6 Does [1,4) include the value 1? a Only if 1 is an integer b No c Yes 7 Is {x: a < x ≤ b} equal to (a,b]? a No, it's [a,b) b Yes c No, it's [a,b] 8 Which interval is half-open on the right? a (a,b) b (a,b] c [a,b) 9 With a = 0 and b = 2, which is NOT in [0,3)? a 2.5 b 0 c 3 10 The interval (a,b] is closed on which end? a Left end (a) b Both ends c Right end (b) 11 What is the sum of -7 and 5? a -2 b -12 c 2 12 Subtract 9 from -4. a -13 b -23 c -5 13 Compute (-8) + (-3). a -11 b -1 c -5 14 What is -15 + 20? a -35 b 5 c -25 15 Net change if temperature drops 6° then rises 4°? a 0 b -2 c -8 16 Result of (-9) + (-3)? a -6 b -12 c -3 17 Compute 7 + (-4). a 11 b -3 c 3 18 Compute (-20) - 7. a -7 b -27 c -13 19 Value of (-5) + 0? a 0 b 5 c -5 20 Owes 10 dollars, then borrows 6 more. Net debt? a -16 b -4 c -26 21 Which equation demonstrates the associative property for adding integers? a a + (b + c) = (a + c) + b b (a + b) + c = a + (b + c) c a + b = b + a 22 Which numeric example shows (a + b) + c = a + (b + c)? a (1 + 2) + 3 = 1 + 2 + 3 b (1 + 2) + 3 = 1 + (2 + 3) c 1 + (2 + 3) = (1 + 3) + 2 23 Which statement shows subtraction is not associative? a (5 - 3) - 2 ≠ 5 - (3 - 2) b (4 - 1) - 0 = 4 - (1 - 0) c (5 - 2) - 3 = 5 - (2 - 3) 24 If a, b, c are integers, which is true for addition? a a + (b + c) = (a + c) + b b a + b = a - b + 2b c (a + b) + c = a + (b + c) 25 Which pair proves associativity in addition with negatives? a (−2 + 5) + (−3) = −2 + (5 + −3) b −2 + (5 + −3) = (−2 + 5) + −3 c (−2 + 5) − 3 = −2 + (5 − 3) 26 Choose the correctly grouped addition for integers. a (6 + (−4)) + 3 = 6 + ((−4) + 3) b (6 + −4) + 3 = 6 + (−4 + 3) c 6 + (−4) + 3 = (6 + −4) + 3 27 Which demonstrates associativity with three numbers? a a + (b - c) = (a + b) - c b a + b + c = c + b + a c (a + b) + c = a + (b + c) 28 Which expression is NOT a property of subtraction? a (a - b) - c = a - (b + c) b a - b = b - a c a - (b - c) = (a - b) + c 29 Which shows that addition with zeros is associative? a a + (0 + b) = (a + b) + 0 b (a + 0) + b = a + (0 + b) c a + b + 0 = a + (b + 0) 30 Which option keeps the same value under regrouping in addition? a x + y + z = x + y - z b x + (y + z) = (x + z) + y c (x + y) + z = x + (y + z) 31 Compute (5 + (-3)) + (-2) = ? a 1 b -1 c 0 32 Which expression shows the associative property of addition? a (2 + 3) + (-4) b ((2 + 3) + (-4)) = (2 + (3 + -4)) c ((2 + 3) - 4) = (2 + (3 - 4)) 33 Compute (-8) - (5 - 2) = ? a -3 b -11 c -6 34 If a=7, b=-3, c=2, compute (a+b)+c. a 8 b 6 c 4 35 Compute a+(b+c) with a=4, b=-7, c=5. a -2 b 4 c 2 36 Compute (-10) + (6 + 4) = ? a -4 b 2 c 0 37 Evaluate ((-2) + 5) + (-3) = ? a 0 b 1 c -1 38 Evaluate 7 + (-9) + 4 using associativity. a 6 b -2 c 2 39 Is subtraction associative for integers? a Subtraction equals multiplication. b Yes, subtraction is associative. c No, subtraction is not associative. 40 Compute (-3) + (-5) = ? a -8 b -10 c -2 41 7 × (-4) = ? a 28 b -28 c -7 42 (-9) ÷ 3 = ? a 3 b -9 c -3 43 (-6) × (-5) = ? a 30 b 11 c -30 44 12 ÷ (-4) = ? a 3 b -12 c -3 45 (-8) × 7 = ? a -56 b -14 c 56 46 0 × (-9) = ? a 0 b 9 c -0 47 (-15) ÷ (-3) = ? a 3 b 5 c -5 48 4 × (-2) = ? a -8 b -6 c 8 49 (-2) ÷ 1 = ? a -1 b 2 c -2 50 9 ÷ (-3) = ? a 3 b -9 c -3

Real Numbers Quiz 2 ( Form 2, Mathematics)

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Real Numbers Quiz 2 ( Form 2, Mathematics)Online version

by YAKILI LMS

What describes a half-open interval?

Which interval is half-closed on the left?

In [3,7), which endpoints are included?

Which describes a ≤ x < b?

For (2,5], which end is closed?

Does [1,4) include the value 1?

Is {x: a < x ≤ b} equal to (a,b]?

Which interval is half-open on the right?

With a = 0 and b = 2, which is NOT in [0,3)?

The interval (a,b] is closed on which end?

What is the sum of -7 and 5?

Subtract 9 from -4.

Compute (-8) + (-3).

What is -15 + 20?

Net change if temperature drops 6° then rises 4°?

Result of (-9) + (-3)?

Compute 7 + (-4).

Compute (-20) - 7.

Value of (-5) + 0?

Owes 10 dollars, then borrows 6 more. Net debt?

Which equation demonstrates the associative property for adding integers?

Which numeric example shows (a + b) + c = a + (b + c)?

Which statement shows subtraction is not associative?

If a, b, c are integers, which is true for addition?

Which pair proves associativity in addition with negatives?

Choose the correctly grouped addition for integers.

Which demonstrates associativity with three numbers?

Which expression is NOT a property of subtraction?

Which shows that addition with zeros is associative?

Which option keeps the same value under regrouping in addition?

Compute (5 + (-3)) + (-2) = ?

Which expression shows the associative property of addition?

Compute (-8) - (5 - 2) = ?

If a=7, b=-3, c=2, compute (a+b)+c.

Compute a+(b+c) with a=4, b=-7, c=5.

Compute (-10) + (6 + 4) = ?

Evaluate ((-2) + 5) + (-3) = ?

Evaluate 7 + (-9) + 4 using associativity.

Is subtraction associative for integers?

Compute (-3) + (-5) = ?

7 × (-4) = ?

(-9) ÷ 3 = ?

(-6) × (-5) = ?

12 ÷ (-4) = ?

(-8) × 7 = ?

0 × (-9) = ?

(-15) ÷ (-3) = ?

4 × (-2) = ?

(-2) ÷ 1 = ?

9 ÷ (-3) = ?