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
30 + 20 = ______
6 × 10 = ______
76 + 20 = ______
85 + 20 = ______
88 + 20 = ______
53 + 10 = ______
2 × 10 = ______
45 + 20 = ______
49 − 10 = ______
57 + 20 = ______
9 × 10 = ______
44 + 10 = ______
33 + 20 = ______
65 − 10 = ______
1 × 10 = ______
29 − 10 = ______
55 − 10 = ______
65 + 10 = ______
44 − 10 = ______
39 − 10 = ______
