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
7 × 10 = ______
53 + 10 = ______
5 × 10 = ______
80 + 20 = ______
68 + 10 = ______
3 × 10 = ______
58 − 10 = ______
65 − 10 = ______
21 − 10 = ______
56 − 10 = ______
79 + 20 = ______
24 − 10 = ______
59 + 10 = ______
17 + 10 = ______
70 + 20 = ______
93 − 10 = ______
22 + 10 = ______
29 + 20 = ______
34 + 20 = ______
78 + 10 = ______
