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
44 + 10 = ______
89 + 20 = ______
27 + 10 = ______
37 + 10 = ______
91 − 10 = ______
42 − 10 = ______
34 + 20 = ______
11 + 10 = ______
41 − 10 = ______
77 + 20 = ______
28 − 10 = ______
76 + 20 = ______
5 × 10 = ______
25 + 10 = ______
4 × 10 = ______
95 − 10 = ______
64 + 10 = ______
8 × 10 = ______
68 + 20 = ______
73 + 10 = ______
