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 = ______
98 − 10 = ______
14 + 10 = ______
7 × 10 = ______
34 + 20 = ______
21 − 10 = ______
2 × 10 = ______
33 + 10 = ______
28 − 10 = ______
63 + 10 = ______
43 + 20 = ______
24 − 10 = ______
1 × 10 = ______
17 + 20 = ______
89 + 10 = ______
87 + 20 = ______
75 + 10 = ______
6 × 10 = ______
68 − 10 = ______
65 + 20 = ______
