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
12 + 10 = ______
46 − 10 = ______
78 + 10 = ______
53 + 10 = ______
72 − 10 = ______
68 + 10 = ______
5 × 10 = ______
22 + 20 = ______
95 − 10 = ______
35 − 10 = ______
42 + 10 = ______
61 + 10 = ______
41 + 10 = ______
93 − 10 = ______
97 − 10 = ______
52 − 10 = ______
65 + 20 = ______
83 + 20 = ______
4 × 10 = ______
85 + 10 = ______
