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 = ______
5 × 10 = ______
6 × 10 = ______
77 + 20 = ______
21 + 20 = ______
92 − 10 = ______
8 × 10 = ______
72 + 10 = ______
53 − 10 = ______
29 − 10 = ______
76 − 10 = ______
64 − 10 = ______
81 + 20 = ______
46 + 10 = ______
30 + 10 = ______
4 × 10 = ______
48 − 10 = ______
78 − 10 = ______
9 × 10 = ______
3 × 10 = ______
