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
48 − 10 = ______
4 × 10 = ______
81 − 10 = ______
84 − 10 = ______
49 + 10 = ______
8 × 10 = ______
74 + 20 = ______
36 + 10 = ______
1 × 10 = ______
12 + 10 = ______
61 − 10 = ______
67 + 20 = ______
2 × 10 = ______
78 + 20 = ______
71 + 20 = ______
74 + 10 = ______
80 + 10 = ______
35 − 10 = ______
7 × 10 = ______
29 + 10 = ______
