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
7 × 10 = ______
77 + 20 = ______
76 + 10 = ______
71 + 20 = ______
20 + 10 = ______
65 − 10 = ______
96 − 10 = ______
6 × 10 = ______
3 × 10 = ______
27 − 10 = ______
22 + 20 = ______
45 − 10 = ______
47 − 10 = ______
5 × 10 = ______
55 + 10 = ______
72 + 20 = ______
85 + 10 = ______
38 + 10 = ______
16 + 20 = ______
12 + 20 = ______
