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
22 − 10 = ______
65 − 10 = ______
18 + 20 = ______
11 + 10 = ______
55 − 10 = ______
61 + 10 = ______
29 + 10 = ______
9 × 10 = ______
96 − 10 = ______
20 + 20 = ______
19 + 10 = ______
36 − 10 = ______
5 × 10 = ______
70 + 20 = ______
89 − 10 = ______
36 + 20 = ______
26 + 10 = ______
47 + 20 = ______
45 − 10 = ______
98 − 10 = ______
