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
19 + 10 = ______
73 + 20 = ______
67 + 10 = ______
93 − 10 = ______
73 + 10 = ______
15 + 10 = ______
36 − 10 = ______
25 + 10 = ______
1 × 10 = ______
6 × 10 = ______
42 + 20 = ______
63 − 10 = ______
3 × 10 = ______
47 + 20 = ______
63 + 20 = ______
9 × 10 = ______
2 × 10 = ______
41 + 20 = ______
59 − 10 = ______
99 − 10 = ______
