Calculate the following problem, can be simplified to 2.4 × 1.25 19-5 / 6-6 / 7-1 / 6

Calculate the following problem, can be simplified to 2.4 × 1.25 19-5 / 6-6 / 7-1 / 6

2.4×1.25
= 2.4×1.25×4÷4
= 2.4×5÷4
= 12÷4
= 3
19-5/6-6/7-1/6
= 19 - 5/6 - 1/6 - 6/7
= 19 - 1 - 6/7
= 18 - 6/7
=17 and 1 / 7

1-13 / 14 × 7 / 9-2 / 9 △ 14 / 13 (simple calculation)

=1－13/14×7/9－2/9×13/14
=1－13/14×(7/9+2/9)
=1－13/14×1
=1－13/14
=1/14

Simple calculation of 10% * 13 / 14 + 1.8 * 14 / 13-9 / 10 / 14 / 13

10%*13/14+1.8*13/14-9/10/14/13
=0.1x13/14+1.8x13/14-0.9x13/14
=(0.1+1.8-0.9)x13/14
=1x13/14
=13/14
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Simple calculation | 3 / 1-2 / 1 | + | 4 / 1-3 / 1 | + | 5 / 1-4 / 1 | +... + | 100 / 1-99 / 1|

Brother, the numerator and denominator are all reversed
Original formula = 1 / 2-1 / 3 + 1 / 3-1 / 4 +... + 1 / 99-1 / 100
=1/2-1/100
=49/100

1+2+3+4+5+6+7+8+9+………… +99 + 100 simple calculation

=（1+100）X（100÷2）
=101X50
=5050

100*7.9+184*2.1+84*2.9
Simple algorithm

Cold cherry warm warm for you original formula = 100 * 7.9 + (100 + 84) * 2.1 + 84 * 2.9 = 100 * 7.9 + 100 * 2.1 + 84 * 2.1 + 84 * 2.9 = 100 * (7.9 + 2.1) + 84 * (2.1 + 2.9) = 100 * 10 + 84 * 5 = 1000 + 420 = 1420 (or in the upper right corner of the client evaluation point [satisfaction]) is my driving force! Your adoption will also bring you

15.7 / 0.12 + 184 / 9.6 what is the answer

15.7/0.12+184/9.6
=157/1.2+23/1.2
=180/1.2
=150
or
15.7/0.12+184/9.6
=1570/12+1840/96
=785/6+115/6
=900/6
=150

If it can be easily calculated, it is necessary to simply calculate 4 / 9 ^ [5 / 6 - (1 / 6 + 1 / 3)] 1 / 15 * (1 / 3 + 1 / 12) 1 / 4 ^ (3-5 / 13-8 / 13)
Thank you very much,

4/9÷[5/6-（1/6+1/3）]
=4/9÷[5/6- 3/6]
=4/9×3
=4/3
1/15*（1/3+1/12）
=1/15*5/12
=1/36
1/4÷（3-5/13-8/13）
=1/4÷（3-1）
=1/8

Simple calculation of 458-302

458-302
=458-300-2
=158-2
=156

(- 84) * 302 + 63 * 302 (- 20) * 302 =? Simple calculation

Original formula = (- 84 + 63-20) * 302 original formula = (- 84 + 63 + 20) * 302
= -41*302 =1*302
=-40 * 302-1 * 302 or = 302
=-12080-302
=-12382