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Q: What is 81 times 4 minus 1?

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1 minus 2 plus 123 times 4 is equal to 491.

Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.

It is: (3.45*4) -(8.18*1) = 5.62

Seven minus negative two times negative 4 is equal to -1

4 × -1 - 3 = -4 -3 = -7

54 divide by 9 miuns 1 times 4

plus times plus = plus minus times plus = minus plus times minus = minus minus times minus = plus so when you subtract a number it is the same as adding its negative; for example 7 - 4 = 3 7 + (1)(-4) = 3

(-3)-(4)=(-3)+4=1 Minus times minus equals plus. The reason for this we need not discuss.

1*-7 +7-4=-4

-3

20.25 or 25 1/220 times with 1 remaining

Yes: the equation is tautological!

-4 plus 85x81 is equal to 6,881.

8

It is plus 4

-81*4/3=-107.999999973

17 times 4 minus 6 is equal to 62.

-4 - (-5) = -4 + 5 = 1

negative four.....

4x2/81 = 1 - 16x2/25100x2 = 25*81 - 16*81x21396x2 = 2025x2 = 2025/1396x = +/- 1.2044, approx.

Yes. Nice work!

324

1/4 minus 1/2 is -1/4.

648 x 1, 324 x 2, 162 x 4, 81 x 8 !

It is: 4 times 81/9 = 36