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
38 + 10 = ______
62 − 10 = ______
60 + 10 = ______
56 + 20 = ______
46 − 10 = ______
74 − 10 = ______
53 + 10 = ______
58 + 10 = ______
89 − 10 = ______
67 − 10 = ______
2 × 10 = ______
59 + 20 = ______
1 × 10 = ______
92 − 10 = ______
58 + 20 = ______
22 − 10 = ______
11 + 20 = ______
61 + 10 = ______
83 + 20 = ______
64 + 20 = ______
