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
35 + 10 = ______
47 + 20 = ______
4 × 10 = ______
6 × 10 = ______
14 + 10 = ______
40 + 10 = ______
1 × 10 = ______
84 − 10 = ______
48 − 10 = ______
53 + 10 = ______
28 + 10 = ______
47 − 10 = ______
74 + 20 = ______
94 − 10 = ______
5 × 10 = ______
30 + 10 = ______
46 + 10 = ______
39 + 20 = ______
7 × 10 = ______
92 − 10 = ______
