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
6 × 10 = ______
3 × 10 = ______
19 + 20 = ______
21 + 20 = ______
70 + 10 = ______
86 + 20 = ______
59 − 10 = ______
86 − 10 = ______
7 × 10 = ______
52 + 20 = ______
63 + 20 = ______
30 + 10 = ______
29 + 10 = ______
94 − 10 = ______
63 − 10 = ______
5 × 10 = ______
37 − 10 = ______
2 × 10 = ______
36 − 10 = ______
97 − 10 = ______
