Cross Cross Combine Worksheet Algebra 1 Part 1: The Equation October 22, 2026
Cross-Cross, Combine & Divide
October 22nd Warm Up: Cross-Cross, Combine and Divide
Introduction to Solving Equations • Part 1: The Equation
“Cross the line...
3–5 Minutes
Name:
Date: October 22, 2026
Period:
Solve the equation algebraically for x:
−2.4(x + 1.4)
=
6.8x − 22.68
Circle Team (Move Right • Flip Sign!)
=
X-Box Team (Move Left • Flip Sign!)
X-Box
Circle
=
X-Box
Circle
=
↓ Moved X-Box
=
↓ Moved Circle
Combined X-Box:
=
Combined
i
Final Step: Last step is always to divide both sides of the equation by the COEFFICIENT of the combined x-box!
Final Solution: x
=
TI-Nspire Truth Test (The Equation)
1. Store solution: [solution] → x • 2. Type original equation: -2.4(x + 1.4) = 6.8x - 22.68 → “true”
Verified “True”
Algebra 1 Part 2: Simplifying Expressions October 22, 2026
Strategy:
The X-Box
Circle Constant
October 22nd Warm Up: Cross-Cross, Combine and Divide
Introduction to Solving Equations • Part 2: Simplifying Expressions
2 Practice Problems
1
Rewrite the expression on the left hand side of the equation in simplest terms using the box & circle below:
TI-Nspire Checked (true)
−2.4(x + 1.4)
Step 1: Distribute & Expand (Show All Work Below) remember: −2.4 · x = −2.4x and −2.4 · 1.4 = −3.36
Step 2: Group Like Terms & Write Final Answer
The X-Box (Variables)
Circle (Constants)
=
Final Answer
2
Rewrite the expression on the right hand side of the equation in simplest terms using the box & circle below:
TI-Nspire Checked (true)
6.8x − 22.68
Step 1: Identify & Separate Terms (Show All Work Below) notice: already expanded • identify variable term vs. constant term
Step 2: Group Like Terms & Write Final Answer
The X-Box (Variables)
Circle (Constants)
=
Final Answer
TI-Nspire Quick Verification Tip
Type [Original Expression] = [Final Answer], press [enter] → “true” confirms your work!
TI-Nspire Check:
Q1:
Q2:
Cross Cross Answer Key Teacher Answer Key Part 1: The Equation October 22, 2026
Cross-Cross, Combine & Divide
October 22nd Warm Up: Cross-Cross, Combine and Divide KEY
Introduction to Solving Equations • Part 1: The Equation (Step-by-Step Solutions)
“Cross the line...
3–5 Minutes
Name: TEACHER REFERENCE KEY
Date: October 22, 2026
Period: ALL PERIODS
Solve the equation algebraically for x:
−2.4(x + 1.4)
=
6.8x − 22.68
Circle Team (Move Right • Flip Sign!)
=
X-Box Team (Move Left • Flip Sign!)
X-Box
−2.4x
Circle
−3.36
=
X-Box
6.8x
Circle
−22.68
=
↓ Moved X-Box
−6.8x
=
↓ Moved Circle
+3.36
Combined X-Box:
−9.2x
=
Combined
−19.32
i
Final Step: Divide both sides by −9.2 : −19.32 ÷ (−9.2) = 2.1
Exact Decimal
Final Solution: x
=
2.1
TI-Nspire Truth Test (The Equation) • Verified
1. Store: 2.1 → x • 2. Test: -2.4(2.1+1.4) = 6.8(2.1)-22.68 → Both sides equal −8.4 → “true”
Verified “True”
Teacher Answer Key Part 2: Simplifying Expressions October 22, 2026
Strategy:
The X-Box
Circle Constant
October 22nd Warm Up: Cross-Cross, Combine and Divide KEY
Introduction to Solving Equations • Part 2: Simplifying Expressions (Worked Solutions)
2 Solved Problems
1
Rewrite the expression on the left hand side of the equation in simplest terms using the box & circle below:
TI-Nspire Checked (true)
−2.4(x + 1.4)
Step 1: Distribute & Expand (Work Shown) remember: −2.4 · x = −2.4x and −2.4 · 1.4 = −3.36
−2.4 · x + (−2.4 · 1.4)
= −2.4x + (−3.36) = −2.4x − 3.36
Step 2: Group Like Terms & Write Final Answer
Spanish Cross Cross Worksheet Álgebra 1 Parte 1: La Ecuación 22 de octubre de 2026
Cruza-Cruza, Combina y Divide
Calentamiento: Cruza-Cruza, Combina y Divide
Introducción a la Resolución de Ecuaciones • Parte 1: La Ecuación
“¡Cruza la línea...
3–5 Minutos
Nombre:
Fecha: 22 de octubre de 2026
Período:
Resuelve la ecuación algebraicamente para x:
−2.4(x + 1.4)
=
6.8x − 22.68
Equipo Círculo (¡A la Derecha • Cambia Signo!)
=
Equipo Casilla-X (¡A la Izquierda • Cambia Signo!)
Casilla-X
Círculo
=
Casilla-X
Círculo
=
↓ Casilla-X Movida
=
↓ Círculo Movido
Casilla-X Combinada:
=
Círculo
i
Paso Final: ¡El último paso siempre es dividir ambos lados de la ecuación entre el COEFICIENTE de la casilla-x combinada!
Solución Final: x
=
Prueba de Verdad TI-Nspire (La Ecuación)
1. Guardar solución: [solución] → x • 2. Escribir ecuación original: -2.4(x + 1.4) = 6.8x - 22.68 → “true”
Verificado “True”
Álgebra 1 Parte 2: Simplificar Expresiones 22 de octubre de 2026
Estrategia:
La Casilla-X
Círculo Constante
Calentamiento: Cruza-Cruza, Combina y Divide
Introducción a la Resolución de Ecuaciones • Parte 2: Simplificar Expresiones
2 Problemas de Práctica
1
Reescribe la expresión del lado izquierdo de la ecuación en su forma más simple usando la casilla y el círculo a continuación:
Verificado en TI-Nspire (true)
−2.4(x + 1.4)
Paso 1: Distribuir y Expandir (Muestra Todo el Trabajo Abajo) recuerda: −2.4 · x = −2.4x y −2.4 · 1.4 = −3.36
Paso 2: Agrupar Términos Semejantes y Escribir Respuesta Final
La Casilla-X (Variables)
Círculo (Constantes)
=
Respuesta Final
2
Reescribe la expresión del
