Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
60 − 10 = ______
78 + 10 = ______
82 + 10 = ______
84 − 10 = ______
63 + 20 = ______
54 + 20 = ______
63 + 10 = ______
38 − 10 = ______
46 − 10 = ______
33 − 10 = ______
27 + 10 = ______
44 + 10 = ______
87 + 10 = ______
67 + 10 = ______
27 + 20 = ______
85 + 20 = ______
59 − 10 = ______
66 − 10 = ______
87 + 20 = ______
83 + 10 = ______
