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
81 + 10 = ______
31 + 10 = ______
3 × 10 = ______
76 − 10 = ______
95 − 10 = ______
60 + 20 = ______
33 + 20 = ______
47 − 10 = ______
8 × 10 = ______
54 + 20 = ______
15 + 20 = ______
45 + 20 = ______
67 − 10 = ______
48 + 10 = ______
35 − 10 = ______
2 × 10 = ______
59 + 10 = ______
6 × 10 = ______
7 × 10 = ______
35 + 10 = ______
