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
39 − 10 = ______
12 + 10 = ______
20 + 10 = ______
45 + 20 = ______
8 × 10 = ______
21 + 10 = ______
17 + 20 = ______
74 − 10 = ______
95 − 10 = ______
73 + 10 = ______
23 − 10 = ______
59 + 10 = ______
96 − 10 = ______
58 − 10 = ______
55 + 10 = ______
46 − 10 = ______
84 − 10 = ______
22 + 10 = ______
88 + 10 = ______
48 + 20 = ______
