Number Sense Flashcards
7 cards from real CAASPP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Number Sense flashcards as text
A bag has 5 red and 3 blue marbles. What fraction of the marbles are red?
Answer: 5/8
There are 5 red marbles out of 5 + 3 = 8 total, so the fraction is 5/8.
Which number has a 4 in the thousandths place? 3.2045
Answer: 3.2045
In 3.2045, the digits after the decimal are 2 (tenths), 0 (hundredths), 4 (thousandths), 5 (ten-thousandths).
What is 2/5 ÷ 4/5?
Answer: 1/2
Dividing fractions: 2/5 × 5/4 = 10/20 = 1/2.
Which number sentence shows the commutative property of multiplication?
Answer: 6 × 4 = 4 × 6
The commutative property states that changing the order of factors does not change the product: a × b = b × a.
Estimate 398 × 51 by rounding each number to the nearest hundred and ten.
Answer: 20,000
Rounding: 398 ≈ 400 and 51 ≈ 50; 400 × 50 = 20,000.
Which set of numbers is ordered correctly from greatest to least: {−5, 2, −1, 0}?
Answer: 2, 0, −1, −5
On the number line, 2 > 0 > −1 > −5, so greatest to least is 2, 0, −1, −5.
A 6-foot rope is cut into pieces that are each 2/3 foot long. How many pieces are there?
Answer: 9
6 ÷ (2/3) = 6 × (3/2) = 18/2 = 9 pieces.