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
6 × 10 = ______
50 + 10 = ______
22 + 10 = ______
2 × 10 = ______
85 + 10 = ______
17 + 20 = ______
4 × 10 = ______
60 + 20 = ______
41 − 10 = ______
8 × 10 = ______
24 + 20 = ______
38 + 10 = ______
80 + 20 = ______
54 + 10 = ______
42 − 10 = ______
90 − 10 = ______
53 + 20 = ______
79 − 10 = ______
46 − 10 = ______
99 − 10 = ______
