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
13 + 10 = ______
53 − 10 = ______
5 × 10 = ______
8 × 10 = ______
76 + 20 = ______
2 × 10 = ______
44 + 20 = ______
43 + 10 = ______
86 − 10 = ______
3 × 10 = ______
17 + 20 = ______
48 + 20 = ______
75 − 10 = ______
73 + 20 = ______
62 + 20 = ______
56 − 10 = ______
88 + 10 = ______
21 − 10 = ______
52 + 20 = ______
81 − 10 = ______
