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
4 × 10 = ______
51 + 20 = ______
49 + 20 = ______
1 × 10 = ______
2 × 10 = ______
74 + 10 = ______
62 − 10 = ______
27 − 10 = ______
9 × 10 = ______
77 + 20 = ______
88 + 20 = ______
44 + 10 = ______
12 + 10 = ______
6 × 10 = ______
3 × 10 = ______
93 − 10 = ______
25 + 20 = ______
64 + 10 = ______
87 + 10 = ______
46 − 10 = ______
