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
83 + 20 = ______
8 × 10 = ______
48 + 10 = ______
78 + 20 = ______
84 + 20 = ______
17 + 20 = ______
45 + 10 = ______
1 × 10 = ______
85 − 10 = ______
39 + 10 = ______
73 − 10 = ______
49 + 20 = ______
47 − 10 = ______
37 + 10 = ______
29 + 10 = ______
96 − 10 = ______
22 + 20 = ______
63 − 10 = ______
49 + 10 = ______
60 − 10 = ______
