\(\dfrac{63^3-37^3}{26}+\dfrac{63}{37}\)

\(=100+2\cdot63\cdot37+\dfrac{63}{37}\)

\(=\dfrac{176257}{37}\)

\(\dfrac{63^3-37^3}{26}+\dfrac{63}{37}\)

\(=100+2\cdot63\cdot37+\dfrac{63}{37}\)

\(=\dfrac{176257}{37}\)

\(=\left(52-42\right)+\left(37+63\right)+\left(28-38\right)\\ =10+100-10=100\)

23 + 39 + 37 + 21 + 34 + 26

= (23 + 37) + (39 + 21) + (34 + 26)

= 60 + 60 + 60

= 60 x 3

= 180

23 + 39 + 37 + 21 + 34 + 26

=(23 + 37) + (39 + 21) + (34 + 26)

=60 + 60 + 60

=60 × 3

=180

a) 14,35 x 63+37 x 14,35

= (63+37) x 14,35

= 100 x 14,35 = 1435

b ) 4/3 x 699 x 0,75

= 4/3 x 699 x 3/4

= 4/3 x 3/4 x 699

= 1x699 = 699

 a,   14,35 nhân (37 +63) =1435

a ra 1435

b ra 699

good luck

= 281 - 121

= 160

(227+54)-(37-26+110)
=281-121=160

\(\left(227+54\right)-\left(37-26+110\right)\)
\(\Rightarrow281-121\)
\(\Rightarrow160\)

Đáp án:

288 + 63 : 7 = 288 + 9 = 297