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
53 + 10 = ______
16 + 20 = ______
65 + 10 = ______
18 + 20 = ______
2 × 10 = ______
5 × 10 = ______
21 − 10 = ______
59 − 10 = ______
8 × 10 = ______
30 − 10 = ______
40 + 20 = ______
57 + 10 = ______
46 − 10 = ______
9 × 10 = ______
54 + 10 = ______
76 + 20 = ______
31 − 10 = ______
6 × 10 = ______
14 + 10 = ______
91 − 10 = ______
