Sure! Here’s the translation of the terms and structure you've provided:
"En mil" - "In a thousand"
CANTIDAD - QUANTITY
mochila - backpack
estuche - pencil case
hay - there is / there are
(un / una) - (a / an)
dos - two
tres - three
cuatro - four
cinco - five
OBJETOS - OBJECTS
bolígrafo(s) - pen(s)
lápiz / lápices - pencil / pencils
subrayador(es) - highlighter(s)
calculadora(s) - calculator(s)
regla(s) - ruler(s)
tijeras - scissors
goma(s) - eraser(s)
CARACTERÍSTICAS - CHARACTERISTICS
grande(s) - big / large
pequeño(s) - small
nuevo(s) - new
viejo(s) - old
de color - colored
azul - blue
verde - green
rojo - red
amarillo - yellow
naranja - orange
rosa - pink
If you need further assistance or specific combinations of the items, feel free to ask!