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
35 − 10 = ______
4 × 10 = ______
68 + 20 = ______
26 + 20 = ______
67 + 10 = ______
7 × 10 = ______
11 + 10 = ______
60 − 10 = ______
42 + 20 = ______
78 + 20 = ______
36 − 10 = ______
86 − 10 = ______
2 × 10 = ______
6 × 10 = ______
22 + 10 = ______
63 − 10 = ______
24 + 10 = ______
59 + 20 = ______
49 + 20 = ______
5 × 10 = ______
