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
63 + 10 = ______
73 + 20 = ______
21 + 20 = ______
37 + 20 = ______
96 − 10 = ______
17 + 10 = ______
38 + 10 = ______
63 + 20 = ______
63 − 10 = ______
46 − 10 = ______
25 + 20 = ______
1 × 10 = ______
7 × 10 = ______
14 + 20 = ______
2 × 10 = ______
12 + 10 = ______
86 + 20 = ______
53 + 10 = ______
50 − 10 = ______
98 − 10 = ______
