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
5 × 10 = ______
2 × 10 = ______
6 × 10 = ______
53 − 10 = ______
64 + 10 = ______
78 − 10 = ______
89 + 20 = ______
74 − 10 = ______
26 + 10 = ______
65 + 10 = ______
55 + 10 = ______
57 + 10 = ______
44 − 10 = ______
69 + 20 = ______
22 − 10 = ______
23 − 10 = ______
8 × 10 = ______
68 + 20 = ______
83 + 20 = ______
46 + 10 = ______
