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
18 + 10 = ______
24 − 10 = ______
80 + 10 = ______
36 + 20 = ______
86 − 10 = ______
3 × 10 = ______
2 × 10 = ______
21 − 10 = ______
4 × 10 = ______
1 × 10 = ______
59 + 10 = ______
29 + 20 = ______
85 + 20 = ______
71 + 10 = ______
42 + 10 = ______
5 × 10 = ______
6 × 10 = ______
50 − 10 = ______
88 − 10 = ______
63 + 10 = ______
