2.1 Use the language of algebra  (Page 6/8)

$16-9$

$25-7$

$5·6$

$3·9$

$28÷4$

$45÷5$

$x+8$

$x+11$

$(2)(7)$

$(4)(8)$

$14<21$

$17<35$

$36\ge 19$

$42\ge 27$

$3n=24$

$6n=36$

$y-1>6$

$y-4>8$

$2\le 18÷6$

$3\le 20÷4$

$a\ne 7·4$

$a\ne 1·12$

$9·6=54$

$7·9=63$

$5·4+3$

$6·3+5$

$x+7$

$x+9$

$y-5=25$

$y-8=32$

$3·3·3·3·3·3·3$

$4·4·4·4·4·4$

$x·x·x·x·x$

$y·y·y·y·y·y$

$5^3$

$8^3$

$2^8$

${10}^5$

1. ⓐ $3+8·5$
2. ⓑ $\text{(3+8)}·\text{5}$

1. ⓐ $2+6·3$
2. ⓑ $\text{(2+6)}·\text{3}$

$2^3-12÷(9-5)$

$3^2-18÷(11-5)$

$3·8+5·2$

$4·7+3·5$

$2+8(6+1)$

$4+6(3+6)$

$4·12/8$

$2·36/6$

$6+10/2+2$

$9+12/3+4$

$(6+10)÷(2+2)$

$(9+12)÷(3+4)$

$20÷4+6·5$

$33÷3+8·2$

$20÷(4+6)·5$

$33÷(3+8)·2$

$4^2+5^2$

$3^2+7^2$

${(4+5)}^2$

${(3+7)}^2$

$3(1+9·6)-4^2$

$5(2+8·4)-7^2$

$2[1+3(10-2)]$

$5[2+4(3-2)]$

Basketball In the 2014 NBA playoffs, the San Antonio Spurs beat the Miami Heat. The table below shows the heights of the starters on each team. Use this table to fill in the appropriate symbol $\text{(=},\text{<},\text{>)}.$

1. ⓐ Height of Tim Duncan____Height of Rashard Lewis
2. ⓑ Height of Boris Diaw____Height of LeBron James
3. ⓒ Height of Kawhi Leonard____Height of Chris Bosh
4. ⓓ Height of Tony Parker____Height of Dwyane Wade
5. ⓔ Height of Danny Green____Height of Ray Allen

Elevation In Colorado there are more than $50$ mountains with an elevation of over $\mathrm{14,000}\text{feet.}$ The table shows the ten tallest. Use this table to fill in the appropriate inequality symbol.

1. ⓐ Elevation of La Plata Peak____Elevation of Mt. Antero
2. ⓑ Elevation of Blanca Peak____Elevation of Mt. Elbert
3. ⓒ Elevation of Gray’s Peak____Elevation of Mt. Lincoln
4. ⓓ Elevation of Mt. Massive____Elevation of Crestone Peak
5. ⓔ Elevation of Mt. Harvard____Elevation of Uncompahgre Peak

Explain the difference between an expression and an equation.

Why is it important to use the order of operations to simplify an expression?