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
55 − 10 = ______
21 + 10 = ______
84 + 10 = ______
72 + 10 = ______
26 + 20 = ______
7 × 10 = ______
84 − 10 = ______
53 + 20 = ______
52 + 20 = ______
64 − 10 = ______
73 − 10 = ______
53 − 10 = ______
3 × 10 = ______
28 − 10 = ______
29 + 10 = ______
37 − 10 = ______
60 + 10 = ______
37 + 20 = ______
54 + 10 = ______
6 × 10 = ______
