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
2 × 10 = ______
14 + 10 = ______
24 + 20 = ______
52 − 10 = ______
1 × 10 = ______
57 − 10 = ______
55 + 20 = ______
64 + 10 = ______
6 × 10 = ______
86 − 10 = ______
86 + 20 = ______
78 − 10 = ______
7 × 10 = ______
4 × 10 = ______
30 + 20 = ______
41 + 10 = ______
54 + 10 = ______
59 − 10 = ______
65 + 20 = ______
8 × 10 = ______
