Tri 2 Final Revision Gr. 7 Day (1)

What is the simple interest formula?

• Simple Interest = Principal ÷ Rate × Time
• Simple Interest = Principal × Rate × Time
• Simple Interest = Principal + Rate + Time
• Simple Interest = Rate × Time

Jhon opened a new account in the bank and put

$2000. What is The simple interest after 7 years  if the rate is 2.5%؟

• $500
• $700
• $250
• $350

Juliet deposited $3,500 into a savings account. The simple interest is $400 . What is the simple interest rate in these 2 years?

• 5.71%
• 3.50%
• 6.00%
• 4.25%

Which property do we apply first when subtracting two expressions?

• Commutative property of addition
• associative property

• Distributive property
• Identity

Find the difference:

(𝟏𝟎 + 𝟖𝒂) - (−𝒈 + 𝟓 + 𝟔𝒃)

• 10 + 8a + g + 6b
• 5 - 8a - g + 6b
• 15 + 8a - g - 6b
• 5 + 8a + g - 6b

Find the difference:

(𝟕 + 𝟓𝒅  − 𝟗𝒄)  − (−𝟖𝒄 + 𝟒 − 𝟕𝒅)

• 10 + 6d + c
• 5 + 8d - 2c
• -1 + 4d - 3c
• 3 + 12d - c