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
7 × 10 = ______
25 + 20 = ______
74 + 10 = ______
3 × 10 = ______
6 × 10 = ______
80 − 10 = ______
35 + 20 = ______
59 + 20 = ______
73 − 10 = ______
51 + 10 = ______
45 − 10 = ______
22 + 10 = ______
78 + 10 = ______
99 − 10 = ______
17 + 10 = ______
29 + 20 = ______
27 + 20 = ______
2 × 10 = ______
63 − 10 = ______
11 + 10 = ______
