(11)² - (1.1)² - (0.11)² = ?

A) 119.7779
B) 121
C) 119.79
D) 119.8021

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4254 + 1420 – 1152 = ?

A) 4632
B) 4522
C) 5622
D) 4432

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7998 - ? = 2350 + 198

A) 5450
B) 5460
C) 5560
D) 5640

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2832 + 3172 = 3606 + ?

A) 2398
B) 434
C) 2308
D) 3366

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2⁵⁄₈ - 3⁷⁄₁₆ = ?

A) -¹³⁄₁₆
B) -¹³⁄₂₄
C) -⁹⁄₈
D) -⁷⁄₈

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