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 + 20 = ______
72 + 20 = ______
28 + 10 = ______
8 × 10 = ______
55 − 10 = ______
4 × 10 = ______
49 − 10 = ______
72 + 10 = ______
74 − 10 = ______
6 × 10 = ______
71 + 20 = ______
76 − 10 = ______
1 × 10 = ______
76 + 10 = ______
64 + 10 = ______
5 × 10 = ______
39 − 10 = ______
52 − 10 = ______
84 − 10 = ______
48 − 10 = ______
