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
88 − 10 = ______
66 + 20 = ______
27 + 20 = ______
37 − 10 = ______
9 × 10 = ______
41 − 10 = ______
32 − 10 = ______
24 − 10 = ______
76 + 20 = ______
87 + 10 = ______
59 + 20 = ______
55 − 10 = ______
47 + 20 = ______
30 − 10 = ______
54 + 20 = ______
4 × 10 = ______
65 + 10 = ______
13 + 20 = ______
60 + 10 = ______
73 + 10 = ______
