Grade 7 - Number Sense Unit - Quiz Prep - GJ

What is the expanded form of 341,080?

• 3 ✕ 10⁵ + 4 ✕ 10⁴ + 1 ✕ 10³ + 8 ✕ 10¹

• 3 ✕ 10⁴ + 4 ✕ 10³ + 1 ✕ 10² + 8 ✕ 10¹

• 3 ✕ 10⁶ + 4 ✕ 10⁵ + 1 ✕ 10⁴ + 8 ✕ 10¹

• 3 ✕ 10⁵ + 4 ✕ 10³ + 1 ✕ 10² + 8 ✕ 10¹

3.25 million is equal to how many ones?

• 32500

• 3250000

• 325000

• None of the above

What is the square root of 900?

• 25

• 35

• 30

• 40

Which inequality is correct?

• 1.26 < 0.99
• 1.26 = 0.99
• 1.26 ≥ 0.99
• 1.26 > 0.99

Round 617.9437 to the nearest tenth.

• 617.94
• 617.9
• 617.95
• None of the above

Write 2,731,570 in scientific notation.

• 2.731 ✕ 10⁶

• 2.731 ✕ 10⁷

• 27.31 ✕ 10⁵

• 0.2731 ✕ 10⁷

What is the square of 11?

• 110

• 121

• 131

• 141

Which of the following is a rational number?

• √2
• π
• 5/6

• e

Write 143.708 in expanded form.

• 100 + 40 + 3 + 0.7 + 0.08
• 143 + 0.708
• 140 + 3 + 0.70 + 0.008
• 1 ✕ 10² + 4 ✕ 10 + 3 + 7 ✕ 10⁻¹ + 8 ✕ 10⁻²

What is the square root of 64?

• 7

• 6

• 8

• 9