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
88 + 10 = ______
39 + 20 = ______
2 × 10 = ______
59 + 20 = ______
5 × 10 = ______
98 − 10 = ______
78 + 10 = ______
91 − 10 = ______
8 × 10 = ______
7 × 10 = ______
3 × 10 = ______
1 × 10 = ______
62 + 10 = ______
73 + 20 = ______
27 + 20 = ______
6 × 10 = ______
36 + 10 = ______
38 − 10 = ______
80 + 10 = ______
58 + 20 = ______
