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
91 − 10 = ______
6 × 10 = ______
33 + 20 = ______
33 − 10 = ______
89 + 10 = ______
93 − 10 = ______
25 + 20 = ______
8 × 10 = ______
5 × 10 = ______
9 × 10 = ______
76 + 20 = ______
17 + 10 = ______
71 + 10 = ______
45 − 10 = ______
4 × 10 = ______
2 × 10 = ______
55 − 10 = ______
1 × 10 = ______
80 + 20 = ______
79 + 10 = ______
