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
78 + 10 = ______
68 − 10 = ______
9 × 10 = ______
59 + 10 = ______
78 − 10 = ______
45 − 10 = ______
25 + 10 = ______
30 − 10 = ______
39 − 10 = ______
29 + 20 = ______
3 × 10 = ______
6 × 10 = ______
1 × 10 = ______
48 + 20 = ______
40 − 10 = ______
23 + 10 = ______
63 − 10 = ______
30 + 20 = ______
27 + 10 = ______
76 + 20 = ______
