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
32 − 10 = ______
69 + 10 = ______
22 − 10 = ______
5 × 10 = ______
89 − 10 = ______
86 + 10 = ______
49 + 20 = ______
1 × 10 = ______
34 + 20 = ______
13 + 20 = ______
47 + 10 = ______
54 + 20 = ______
3 × 10 = ______
87 + 10 = ______
85 + 20 = ______
57 + 10 = ______
33 − 10 = ______
79 + 20 = ______
46 − 10 = ______
81 + 10 = ______
