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
32 − 10 = ______
2 × 10 = ______
1 × 10 = ______
48 − 10 = ______
60 + 10 = ______
21 + 10 = ______
42 + 10 = ______
18 + 10 = ______
30 − 10 = ______
88 + 10 = ______
86 + 10 = ______
41 + 10 = ______
75 − 10 = ______
75 + 10 = ______
29 − 10 = ______
43 + 20 = ______
37 − 10 = ______
65 + 10 = ______
89 + 20 = ______
62 + 20 = ______
