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
38 + 10 = ______
9 × 10 = ______
13 + 10 = ______
8 × 10 = ______
76 − 10 = ______
15 + 10 = ______
93 − 10 = ______
31 + 10 = ______
46 − 10 = ______
83 − 10 = ______
21 + 10 = ______
39 + 10 = ______
85 − 10 = ______
58 + 10 = ______
5 × 10 = ______
80 + 20 = ______
29 + 10 = ______
28 + 20 = ______
42 − 10 = ______
14 + 20 = ______
