Unit 1 Math Review

The expanded notation of a number is shown.

(3 x 1000) + (4 x 100) + (9 x 1)

What is the standard form of this number? Enter your answer in the box.

What list shows the numbers in order from greatest to least value?

• 38,945 9,052 9,181

• 6,912 29,013 34,987

• 58,702 50,716 581

• 6,092 60,019 5,005

What is the relationship between the thousands place and the hundreds place in the number shown?

971,111

• The thousands place is two times greater than the hundreds place

• The thousands place is ten times greated than the hundreds place

• The thousands place is seven times greater than the hundreds place

• The thousands place is zero times greater than the hundreds place

Which answer choice does NOT describe the number 7,140?

• The sum of seven thousands and 14 tens

• The sum of seven thousands, one hundred, and forty tens

• The sum of seven thousands, one hundred, and four tens

• The sum of seven thousands, one hundred, and forty ones.

Which expression represents the number 867?

• 80+60+70

• 800+6+7

• 500+300+50+10+7

• 500+300+60+70

An expression is shown.

5+700+40

What number is equivalent to this expression?

Record your answer in the boxes below. Be sure to use the correct place value.

The expanded notation of a number is shown.

(9x10,000) + (4 x 100) + (1 x 10)

What is the standard form of this number?

• 9,410

• 94,010

• 90,401

• 90,410

Which of these models represent the same number?

• Model X and Model Y, because 20 ones is equivalent to 20 tens

• Model X and Model Z, because 20 ones is equivalent to 2 hundreds

• Model Y and Model Z, because 20 tens is equivalent to 2 hundreds

• None of these

Which list shows the numbers in order from greatest to least value?

• 38,945 9,052 9,181

• 6,912 29,013 34,987

• 58,702 50,716 581

• 6,092 60,019 5,005

Which comparison is true?

• 68 > 649

• 571 > 582

• 730 < 806

• 709 < 692