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
38 − 10 = ______
30 + 10 = ______
5 × 10 = ______
60 − 10 = ______
11 + 10 = ______
91 − 10 = ______
21 − 10 = ______
13 + 10 = ______
59 + 20 = ______
8 × 10 = ______
55 − 10 = ______
7 × 10 = ______
50 + 20 = ______
50 − 10 = ______
6 × 10 = ______
12 + 10 = ______
67 + 20 = ______
4 × 10 = ______
71 + 10 = ______
41 + 20 = ______
